In short
Business History episode about Frederick Tudor’s “frozen water trade”—shipping blocks of ice from Boston to hot markets (West Indies, Havana, and ultimately Calcutta/Kolkata) and turning a seemingly absurd idea into a global industry.
Guest backgrounds
Hosts Jacob Goldstein and Robert Smith discuss Tudor’s diary and historical sources; no external guests appear in the transcript.
Key claims
Tudor’s breakthrough was logistics plus opportunity cost—using underemployed winter labor, idle ship space, and otherwise low-value pond ice. Early failures came from melting, lack of storage, and trade disruptions (Jefferson’s Embargo Act; War of 1812). Later success depended on ice-house engineering and mechanized ice harvesting (Nathaniel Wyeth’s horse-drawn ice plow and pulley systems).
Notable examples
1806 voyage of The Favorite with 80 tons to Martinique; 1815/1816 Havana ice-house construction; 1833 shipment of 180 tons to Calcutta (towed upriver; silver cup awarded); Walden Pond “ice cakes” (Henry David Thoreau era); downstream industries enabled by ice (meatpacking, beer, city ice deliveries).
Written by AI. May contain mistakes. Listen to the episode to check what was said.
Chapters
Tap a time to open that second in VOThe Origins of Ice Shipping
2:56 to 4:40
Explore how Frederick Tudor conceived the idea of shipping ice from Boston.
“And the story of that effort is about what I will argue is the most underrated idea in economics.”
Frederick Tudor's Vision
4:40 to 6:11
Learn about Tudor's early experiences that inspired his ice business venture.
“You forgot step number zero, which is if you're going to try a crazy business, have a rich dad.”
Challenges in the Ice Trade
6:11 to 7:24
Uncover the skepticism Tudor faced from merchants and insurers regarding his idea.
“And so because of this imbalance, a lot of the ships are heading out largely empty.”
Persistence and Innovation
7:24 to 9:50
Witness Tudor's determination to make ice shipping a reality despite setbacks.
“I feel like he's already writing to future generations.”
The First Ice Shipment
9:50 to 14:01
Follow Tudor's journey as he prepares and sends his first shipment of ice.
“And he decides he's going to be the one to solve this timeless problem.”
The Journey of Ice to Martinique
14:01 to 16:48
Explore how ice was transported and perceived in Martinique.
“A vessel with a cargo of 80 tons of ice has cleared out from this port for Martinique.”
Challenges of Selling Ice
16:49 to 18:19
Discuss the novelty and challenges of selling ice in a warm climate.
“You know, it does strike me that this is one of the first times we're talking about logistics with a cargo that really has a clock ticking on it, right?”
The Economics of Ice Business
18:20 to 19:10
Learn about the financial struggles faced by Frederick Tudor.
“Frederick Tudor's ice has melted, but his resolve has not!”
Frederick Tudor's Continued Struggles
21:07 to 24:52
Examine Tudor's ongoing challenges and persistence in the ice business.
“Robert, I'm going to give you a montage now because...”
Building an Ice House in Havana
24:53 to 28:01
Learn about Tudor's innovative solutions in constructing an ice house.
“It is admirable on some level, but it's not always admirable to keep doing a thing that's not working.”
Show all 21 chapters
Building the Ice House
28:01 to 29:16
Learn how the first ice house was constructed and its initial operations.
“And then on the inside, they build like a little inner shell, right?”
The Ice Business Takes Shape
29:17 to 31:28
Discover the early challenges and growth of the ice business in various locations.
“But he's at this point now where he's, it's, you know, not entirely profitable.”
The Rise of Demand and Supply Issues
31:29 to 32:56
Understand the challenges faced as demand for ice begins to exceed supply.
“He has spent his entire adult life trying to sell ice.”
Innovations in Ice Harvesting
32:57 to 35:16
Explore the technological advancements that improved ice harvesting processes.
“But, you know, in general, people don't want to do that because business is a many time game, right?”
The Bold Move to India
35:17 to 38:01
Follow the ambitious plan to ship ice from Boston to India and its preparations.
“And at American Military University, it can open doors for the whole family.”
Ice Arrives in Calcutta
38:02 to 42:00
Witness the dramatic arrival of ice in Calcutta and its impact on the local community.
“It's 1833, and a Boston merchant comes to Frederick Tudor with an idea.”
The Beginning of the Ice Trade
42:00 to 43:38
Learn about the initial success and societal impact of shipping ice to India.
“and the ship arrives and there is ice left.”
Understanding Opportunity Cost
43:38 to 46:29
Explore the economic principle of opportunity cost through the ice trade example.
“And so there is still kind of this question, which is, how does it make sense?”
Tudor's Business Innovations and Legacy
46:29 to 49:20
Discover how Tudor innovated in the ice industry and created a thriving business.
“Immensely valuable, which is why once he figured out how to keep the ice from melting, He built an industry and got rich.”
The Rise of Ice Dependency
49:20 to 51:48
Examine how the ice industry became essential in American society and its influence.
“Because like any technological innovation, it makes other innovations possible.”
Lessons from the Ice Trade for Modern Business
51:48 to 52:52
Reflect on modern business opportunities inspired by the historical ice trade.
“And so, yeah, it has to be cheaper and better before it gets widely adopted.”
Transcript
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1:37Pushkin. Too quick? No, it was perfect. Pushkin. Stop. You got it.
1:54I want to talk to you about ice, as in frozen water. Yes, I know what ice is. In the year 1800, in the city of Boston. They have lots of ice in Boston. They have lots of ice in the winter. During the winter. And they have figured out by this point that you can cut ice out of frozen lakes in the winter, store it in specially built ice houses, and get it out in the summer to enjoy a cold drink. Or ice cream. They actually had ice cream. Love it. And so you could sit there eating your ice cream on an August day and staring out at Boston Harbor, and you would see ships heading out for the world. New Orleans, Havana, Calcutta.
2:31And you might think, oh, I bet those people in Havana and New Orleans would kill for some ice right about now because they're so hot. I bet they'd pay out the nose for it. And then you'd think, oh, no, that would never work because ice melts. Ice melts. You can't get it there. Or can you? What? I'm Jacob Goldstein. I'm Robert Smith. And this is Business History. A show about the history of business. Today on the show, there was, in fact, a man from Boston, sounds like the beginning of a limerick, but it's not, who set out to see if he could build a business, an industry, really, by shipping ice halfway around the world.
3:14And the story of that effort is about what I will argue is the most underrated idea in economics. And this industry was started by a guy who got thrown in jail, who annoyed Henry David Thoreau. Easy man to annoy. Pronounced Thoreau. And who everybody thought was a joke. I don't even know his name yet. His name was Frederick Tudor. He was born in 1783 to a pretty rich family. His dad had been George Washington's judge advocate general in the Revolutionary War. Everybody called him the judge. It's like the way people who are ambassadors always get called ambassador for the rest of their lives. And they had a house in Boston and a country house on a farm outside of town.
4:00And Frederick was supposed to go off to Harvard like his dad, of course, but he thought school was boring. So when he was 13 years old, he dropped out and hung out on the farm hunting and fishing. and eating ice cream in the summer, living the dream, because the Tudors had this ice house on their farm. And when the pond on the farm froze in the winter, workers would cut blocks of ice out and put it in this house. And the house was probably built a little bit underground for insulation. And they would put like heat or hay or something on the ice to keep it cold. They had like drainage out of the ice houses so that water wouldn't puddle up.
4:37And this is really thing one, step number one. He knows about ice and ice cream. You forgot step number zero, which is if you're going to try a crazy business, have a rich dad. Yes. An excellent, excellent way to. A rule to this day. Yeah. If you want to be an entrepreneur taking a flyer. Yes. Have some money to fall back on. Have some money. Fair enough. So whatever step we're on now, step two, step three, however you're counting it. The next step came when he was 17 years old in the spring of 1801. One of his brothers, his older brother, who was 19, got sick. And they decided to send him to Havana to recuperate.
5:14It didn't help him, in part because it was so hot in Havana. It was so unpleasantly hot. But in fact, Frederick's brother died before they got back to Boston. You know, it was tragic. Frederick was devastated. But he has now experienced in a visceral way just how hot it is in the tropics in summer. And the next thing, kind of the last piece of essential context for him, his dad gets him this, what we'd call an internship, working with some merchants in Boston. And Boston, of course, a big trading town at this time. You know, the harbor is full of ships coming and going from all over the world.
5:52But crucially, Boston, in a kind of local way, has what we call a trade deficit at this time. Stuff is coming in from all over the world, you know, spices and tea and whatever, sugar. But not so much stuff is going out. Some stuff, you know, manufactured goods, some stuff is going out, but a lot more is coming in. And so because of this imbalance, a lot of the ships are heading out largely empty. Their holds are not full of stuff. Which happens to this day. There are places who have to send back empty ships to China because they import more than they export. Yes, yes. And in fact, they had dredged Boston Harbor to pull up rocks to put in the ships as ballast so they wouldn't ride too high in the water.
6:35So he's sitting there eating ice cream. He's got his ice farm. He's thinking about how hot it is. And he sees empty ships. Yeah, he sees them, you know, paying essentially to get rocks to put in the ships. And so now it comes together for him. And conveniently for our story, we know this because in the summer of 1805, he's in his early 20s, he starts a diary and he draws a picture of an ice house on the cover of this diary. And he writes the words Ice House Diary. And he makes the first entry in the diary. Camera zooms in, young man with a quill in his diary. And his other hand, a dripping ice cream cone.
7:14Okay. Boston, August 1st, 1805. have this day determined to get together what property we have and embark in the undertaking of carrying ice to the West Indies the ensuing winter. I feel like he's already writing to future generations. He imagines himself as this ice magnet, and it's like, this is how it started. I like the idea that whatever he's doing throughout this story, I'm going to imagine him eating ice cream. He loves it. I don't actually know if he loves ice cream. Everyone loves ice cream. I love ice cream. I'll mention here, by the way, that the quotes from the diary in the show come from a book about Tudor called The Frozen Water Trade by Gavin Waitman.
7:55Great book. And, you know, when you think about this entry, like, it seems like Frederick deciding to get into the international ice business. But it's bigger than that because there is no international ice business, right? Like, he is making up this idea for a thing that doesn't exist. But it is clear when you look at it that people in hot places had always really wanted to be cool. You know, it's not like, oh, now we have air conditioning and we're like weak, modern people. No, people always hated it when it was super hot. They always tried to cool off if they could. I mean, it's a biological imperative.
8:31We sweat because our body is 98.6 degrees and does not like to be hotter than that. It's caused distress as long as there's been hot temperatures. Yeah, and there is evidence of this, right? people in the Andes would bring snow and ice down from the mountaintops to Lima on the coast. And the ancient Romans would bring snow down from the mountains and pack it into these straw-lined pits, you know, to store it. Yeah, you've got always the emperor, you know, being fanned by those giant palm fronds. Yes, the giant palm fronds, a classic sign that coolness is luxury. And my favorite, actually, that I learned about working on this show.
9:07I don't entirely understand it, but they did it in India. When it got down, like, not to freezing, but like 40 degrees or something, they would dig a hole in the ground, line it with straw, and then take these, like, shallow, porous earthenware dishes, and in the evening they would pour, I guess, boiling water into them. And then somehow, I don't know what, evaporative cooling, something, something, in the morning, there would be like a little patina of ice on it, a little, you know, a rind of ice. And they would collect a little bit of ice out of all these dishes and mash it all together. And like, that is ice the hard way.
9:45They really wanted ice. Yeah, they dreamed of a land where entire lakes became ice. So the point is they really wanted ice. And Frederick knows this. He has seen it. And he decides he's going to be the one to solve this timeless problem. sets out to raise the money to do it. You know, I don't know exactly what his elevator pitch was, but I think it's basically, I'm going to put ice on ships, and then the ships are going to sail for like a month or a couple months, something, something, dot, dot, dot, profit. And... Thanks for the check, Dad. Thanks for the check, Dad. So the judge, his dad was out.
10:22And in fact, the response he got was described by Frederick's brother-in-law, who later wound up working for him. So here, read from that letter. The idea was considered so utterly absurd by the sober-minded merchants as to be the vagary of a disordered brain, and few men would have been willing to stand the scoffs and sneers from those whose assistance it was necessary to obtain. Merchants were not willing to charter their vessels to carry ice. The offices declined to insure, and sailors were afraid to trust themselves with such a cargo. Which is what? Because it's going to melt. Because it's going to melt.
10:59The one thing you know about ice is, like, you're hiring me to take this ice around the world to a hot place. There won't be any left, and everyone's going to blame me, the sailor. And the whole point of a ship is to keep the water out. Yes. Right? You know, don't put the water in. You keep it out. Not only are people not investing, he can't even get people to take his money, right? He's saying, like, insurers wouldn't insure it because they're like, no, you're just going to flood the ship. We're not going to insure this. So one of the things that becomes clear about Frederick, you know, who is this guy?
11:28Who is the protagonist of this story? He is absurdly persistent. He seems truly not to care that everybody thinks his idea is just a bad idea. And at one point, he actually writes on the cover of his diary, of the Ice House Diary, this sort of motto. Robert. Hugh gives back at the first repulse. And without striking the second blow, despairs of success. has never been, is not, and never will be a hero in love, war, or business. He is basically giving himself a pep talk in this kind of absurd, elevated language. Never give up is what he's saying. He's saying never give up. Today, if he were, you know, an entrepreneur, instead of a diary, he would be like a thinkfluencer with his own TikTok channel building in public.
12:15Yeah, definitely a TED Talk, a hero in love, war in business. So he is not despairing. He is a man of action. And he sends his brother-in-law and his brother, not the one who died, different brother, to Martinique, to the French colony in the Caribbean. And amazingly, he tells them, get the colonial governor there to give us a monopoly on the ice trade. Here's a business that everybody thinks is terrible, but my idea is so right that everybody's going to want in and we are going to want a monopoly. I love it. I don't think there are other competitors, but. Not yet. Yeah. Yeah. So the colonial governor is like, sure, have a monopoly.
12:53I think they have to bribe him because why would he give it for free? But yes. And I will say, like, getting a monopoly from the government is a thing at this point. We talked about it in the Match King show. So it's a thing businesses do. Now, while his brother and brother-in-law are down there, whatever, bribing the colonial governor for the monopoly, Frederick is getting ready to send the merch, the ice. and nobody will let him pay for space on their ship because the water thing. And so he mortgages a piece of family land and buys a ship. It's a brig, which I believe is a two-masted square rigged ship, but surely half the people listening know exactly what a brig is.
13:36Email us at businesshistory at pushkin.fm. The brig is called The Favorite. And on February 10th, 1806, he sails on his ship full of ice for Martinique. And it's news. It gets written up in the Boston Gazette. I imagine the news reporter is like, oh, there's a ship full of ice? I got to see this. And this is what they wrote in the newspaper. No joke. Seriously, they wrote, no joke. A vessel with a cargo of 80 tons of ice has cleared out from this port for Martinique. We hope this will not prove to be a slippery speculation. Congratulations, Boston Gazette. You're so clever. To this day, if a ship full of ice left the harbor, they would be making the slippery joke.
14:23For sure. For sure. There would be a melt joke in there. There would be a liquidity. Oh, liquidity. I'm not even making any liquidity jokes. So the ship gets to Martinique about three weeks later. We don't know how much of the ice has melted, but a lot of it is still there. which is amazing, right? And just to answer, like, the most obvious question, how does that work? Well, A, the blocks are pretty big. Like, I don't know exactly how big, but something like a foot by two feet by two feet. So pretty big. And they're all put together, right? So they're all kind of insulating each other. And then he works on insulation all through his career, tries different things, you know, peat and sawdust and whatever.
15:01So he's figured out enough at this point that there is ice there. Now, you know, if you've lived in Martinique all your life, you've literally never seen ice, which is amazing, right? It's like a moon rock or something, but weirder because a moon rock just looks like a rock. And so Frederick gets there and he's like, get your ice, you know, ice, get your ice here. It was like, what should I use this for? What do I do it for? Yeah, nobody's got a refrigerator. Yeah, and it actually reminded me this part of 100 Years of Solitude. You know, the Gabriel Garcia Marquez book, you know, the famous first line.
15:37Absolutely incredible first line. You have it memorized, right? I do, but I also wrote it down. Okay. Many years later, as he faced the firing squad, Colonel Aureliano Windia was to remember that distant afternoon when his father took him to discover ice. So without the firing squad, that's what's happening here. Yeah. Right? Like, some people are buying ice just to be amazed, just to be like, hey, son, hey, daughter, hey, look, look at this. It's, touch it. It's solid, but it's so cold. It's water, but colder. So, yeah, they don't really know what to do with it. It's kind of a novelty. Frederick does take, like, 60 pounds of ice to a guy who runs some kind of little amusement park or something and shows him how to make ice cream.
16:20And as you mentioned before, everybody loves ice cream. Picture Frederick again eating ice cream, shaking hands with the guy. But there is this problem that he's up against. And the problem is physics. There's nowhere to store the ice. So it's melting. It's just sitting there melting. He's selling what he can, but it's melting. And a few weeks later, he sails back to Boston, does get paid to carry sugar back from Martinique to Boston. And in all, he grosses about$2 ,000 from the trip. But that's gross. that's just the money that has come in. You know, it does strike me that this is one of the first times we're talking about logistics with a cargo that really has a clock ticking on it, right?
17:03I mean, all of world trade was designed being like, well, this is going to take months. So let's put things in that can last for months. And so he's facing what will become a bigger and bigger problem in modernity, which is how do we get things to someone fast enough that it stays good? Yeah. In a weird way, he's inventing the cold chain, right? Today we talk about the cold chain of like whatever, milk or a vaccine or something has to stay cold the whole time. The ice itself, which is a refrigerator. Has to stay cold. Yeah. Yeah. It is a profound logistical problem that he is up against. So as I said, he grossed something like$2 ,000, but that was not nearly enough to cover his costs, even if you don't count the cost of the ship.
17:42And so essentially what happened is what his dad, the judge, and everybody else had said would happen. The ice melted and he lost a lot of money. And what does Frederick, our grindside entrepreneur, do? Blames his employees. Blames his brother and his brother-in-law. From his diary. They never entered into the undertaking with the ardor, which was necessary to ensure success in the outset of the business. They were easily discouraged and did not announce the thing with that confidence that defies ridicule and opposition, ensures friends, and leads in every project more than anything to success.
18:18They didn't believe! They didn't believe in the dreams! They didn't want it enough! They didn't want it enough. Frederick Tudor's ice has melted, but his resolve has not! In a minute, things are about to get worse for him.
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21:06And we're back. Staying cool. Robert, I'm going to give you a montage now because... We need a hero. Boom. We're going to cover a lot of ground pretty quickly. And the ground is basically mostly going to be Frederick Tudor getting his ass kicked. Let's do it. He sends his brother to England to get monopolies on selling ice in the British colonies in the Caribbean, you know, Jamaica, Antigua, Barbados. The idea that you would need a monopoly on something as ridiculous as selling ice makes the British think the brother is a spy, a spy with a terrible cover story. It's like, come on, make up something better.
21:45Meanwhile, Tudor himself goes to Cuba, a much bigger market than Martinique, and builds an ice house. So now he can, you know, keep his inventory for longer, starts selling ice in Havana, and it sort of works, but he's still losing money, still underwater, if I may. The world is just not cooperating with his entrepreneurial dreams. In 1807, President Thomas Jefferson signs the Embargo Act, which I had forgotten about. Amazingly, it bans the U.S. from engaging in foreign trade in order to punish Britain and France for messing with U.S. shipping during the Napoleonic Wars. Who would ever hurt international trade in order to punish their enemies or their friends or themselves?
22:32In particular, this punishes New England, Boston, which, you know, relies much more heavily on trade than Thomas Jefferson's Virginia, right? Which might have been kind of the point. Might have crossed his mind. And in really particular, it hurts Frederick Tudor, whose entire business at this point is entirely dependent on foreign trade. So Tudor is falling deeper and deeper into debt. And in 1809, he is arrested because of his debts. And as you know, at this time, you could get thrown in jail for debt. Yes. He manages to scrape together enough money to stay out of jail. But then a few years later, he gets arrested again for debt.
23:06And this time he is thrown in jail. And I guess they let him bring his diary to jail because he wrote about it. Yeah, debtors prisons actually did have often desks and writing materials so you could try and pay off your debts from inside the prison. Would you like write to your family to ask for money or whatever? Yeah. Yeah. You would write to like try and sell your property, try and cover your debts. From the diary. On this memorable day in my little annals, I am 28 years, six months and five days old. Scratching it out. Chalk marks. It is a climax which I did hope to have escaped as my affairs are looking well at last after a fearful struggle with adverse circumstances for seven years.
23:44The phrase I want to note here. Yes. My affairs are looking well at last. Man is in jail for debt. He's been at this for seven years, and he thinks it's just turning around for me. And again, I think this is a very entrepreneurial trait, right? Like to keep doing this, to keep failing for this long, you always have to believe, oh, I got it now. Oh, this time, this time I really got it. I bet at any day in those seven years, he could have written in his diary, this is the moment. It's about to turn around. It's all upside from here. So he scrapes together enough money to get out of jail. And he keeps going, keeps trying.
24:28And then comes 1812. You know what happens in 1812? There's a war named after it. International trade basically gets shut down again. He gets jailed for debt again. Gets out, keeps going. And I think it's worth pausing here to talk about this trait, right, this persistence, this grit, because it seems admirable. It is admirable on some level, but it's not always admirable to keep doing a thing that's not working. You know, like there are thousands of entrepreneurs from history, millions maybe, who are doing a thing and everybody's like, that's a terrible idea. And they were like, no, it's a great idea.
25:09I believe in it. And I'm going to persist. And most of them are terrible, are terrible ideas. And that's why everybody's saying it's a terrible idea. And so, you know, we don't tell those stories because it's a boring story. It's a terrible idea. And it continues to be a terrible idea at the end. And we also understand ICE now. But looking back, everyone thinks he's a joke. Yeah. And he's proving it every day by being thrown back in the jail. And so I just want to, and this is like a professional risk we have telling these kinds of stories, right? Like it's a survivorship bias kind of thing where we'll tell the stories where the terrible idea turned out to be great.
Read the full transcript
25:47But it's not obvious to me that a lesson to take from this is always believe in your dreams. Sometimes your dreams are bad ideas. Yeah, we're not doing a show about the guy who decided he was going to put fresh air in boxes from the mountains and take them to polluted cities so that people would enjoy fresh air. I'm interested. Okay. I would have given my email. So whatever the lesson is or is not, Frederick Tudor doesn't pivot. And I should say, and this maybe is a little bit more of a lesson, he is a meticulous businessman. His account books are stored at the, I think, the business school library at Harvard.
26:24And there was actually this article in 1984 in the Accounting Historians Journal. What a great journal. Why did you not tell me about this journal? You've been keeping it from me. The Historian's Journal. So in this article, they studied his books, his ledgers, and they said he employed sophisticated accounting techniques to analyze and control transportation costs and the costs of product shrinkage. Which is usually a euphemism for people stealing your product. Yeah, shrinkage is like if it gets stolen, if it breaks, if it rots, that's all shrinkage. This is actual shrinkage. Yeah, the ice is getting smaller.
26:58It's literal shrinkage. And in fact, all through this time, when he's in debt and he's in and out of jail and shut down by wars, Frederick Tudor is trying to reduce shrinkage. He's trying to figure out how to get the ice to melt more slowly. And crucially, he's trying to figure out how to quickly build an ice house in some tropical foreign port so that he can store his merchandise without too much shrinkage. He gets his chance to really test all this out when the War of 1812 ends. In 1815, by the way, didn't know that. Should have called it the War of 1812 to 1815. Three Years' War. The Three Years' War.
27:36War of 1812 is actually a good name. You know when it was, for one thing. Sort of. So he's still in debt, 1815, running from the law, step ahead of the sheriff. He gets on a ship bound for Havana, sailing with 159 cedar posts and a crew of carpenters who are going to help him build an ice house in Havana. The ice is coming on a later ship. They get there. They build the ice house. It's like a cube of 25 feet on a side. And then on the inside, they build like a little inner shell, right? They're going to make it sort of like a giant thermos in a way. And they put like sawdust and peat for insulation between the inner and outer wall.
28:18And then up on the top on the inside, there's like the floor where you can hang out and whatever or do business. And they put a trap door on the floor. So you lower the ice down beneath the floor and raise it up out of it. It's a nice image. And now the ice gets there and he's like frantically caring for it, measuring the runoff to, you know, assess how fast it's melting, adjusting the insulation, pitching the ice, you know, going to all the bartenders in town and giving it like first one's free kind of thing, you know, free subscription. Because even in Havana, they wanted refrigerated drinks.
28:52You bet. You've been to Havana. I've been there. It's hot. I picture they had a Cuba Libre, which is all sticky and warm and terrible. They have a glass of warm rum and they're like, oh, if only I had some ice and somebody would invent Coca-Cola, this would be amazing. They had a lime, probably. So it kind of works. It kind of works at this point. It's like a proof of principle works. He's able to store the ice for months. They do like it in Havana. But he's at this point now where he's, it's, you know, not entirely profitable. It's sort of working. But he's got the model. And so he's building ice houses now in other places, in Martinique's original spot, in St.
29:39Thomas, and also in the American South, in Savannah and Charleston. And at the end of 1820, he sends another brother, his younger brother, to set up an ice business in New Orleans. Seems promising. If anyone loves a great cold cocktail, it's New Orleans. It's New Orleans. They're about to love a great cold cocktail. So he figures if they can sell$10 a day worth of ice in New Orleans, that'll be a good business. And at this point, even our guy, even our, you know, fight on, persistent grindtrepreneur is getting nervous about this. One day, his entire diary entry is in all caps, and it's one word, anxiety.
30:26Oh. Next day, what does he write? Anxiety. Anxiety. Next day, anxiety. This is the most relatable part of the diary for me, I'll be honest. This is often Jacob's Google Docs when he writes the shows. Anxiety. Anxiety. And then, I don't despair, though. I don't despair. I keep making shows. And then, in July of 1821, after a decade of failures, the breakthrough finally comes. Frederick gets a letter from his brother in New Orleans. And remember, they'd hoped for$10 a day in sales. The brother says they are now selling$40 every day in ice. New Orleans is going bananas for ice. Just the parade is going down.
31:16Jazz hasn't been invented yet, but they're playing it. They have the second line. They're all drinking hurricanes in one of those weird, long, tall glasses. And it's cold. Yes, it's a pure anachronism. Time is running forward and backwards. The bachelorette parties are so happy at this point. Frederick Tudor is 37 years old. He has spent his entire adult life trying to sell ice. And now, finally, he's doing it. It's happening. It's a real business. He pays off his debts. He buys some land on this little island next to Boston. And now, interestingly, he has a new problem. It's a good problem. Much better than, you know, getting thrown in jail for debts.
31:58But it is still a problem. Demand is outstripping supply. He doesn't have enough ice. And this one, you know. You're trying to be the ice king and you're like, I mean, he wasn't prepared for it after all these years. It is. So, you know, I've interviewed lots of startup founders, basically, and they talk about this moment. I remember the American giant guy in particular, you know, the sweatshirt, American made sweatshirts. He talked about having this moment where there was this article that just made his business take off. And it's not great. Right. Like he hated it. It meant he couldn't give people this thing that he wanted to give them.
32:34Because he's not trying to sell ice as a luxury product. Yeah. He wants to sell commodity ice around the world. And he's a logistics man. And logistics is really hard to pull off. Yeah. And so you can't just turn one ice lever and double your supply. And, I mean, when you're saying he doesn't want it to be a luxury product, you mean he can't just jack up the price, right? Because the kind of mechanical econ 101 thing is like, oh, people are buying more than you have. Just jack up the price. But, you know, in general, people don't want to do that because business is a many time game, right? You want loyal customers.
33:11You want them to love you. You don't want them to remember you as the guy who tried to gouge them when you could. So often entrepreneurs don't want to just jack up the price. What they want to do is increase supply by increasing efficiency. And, you know, getting the ice out of the frozen lakes is actually quite inefficient at this point. It's all guys out there with saws, basically, sawing blocks out of a frozen lake. And it's hard to get it up out of the lake. It's hard to saw it. It's all hard. The guy who was going to solve this problem is actually a guy who works for Tudor, a guy named Nathaniel Wyeth, who had grown up on this little lake outside of Boston called Fresh Pond.
33:55His family had a hotel there. They cut their own ice. And Wyeth becomes a supplier to Tudor. And around 1825, he has this idea where he builds this thing with metal blades that you can attach to a horse. So, like, think of a plow, right? It's like a plow, but for the ice. And you push the horse out on the ice? I love it. Actually, you put spikes on the horse's shoes. Yeah, yeah. And so when the ice is thick enough, important, the horse pulls the plow across the ice and it cuts it. So logical. He actually figures out you have it go at like 90 degree angles. You have it go one way and then you have it go at a 90 degree angle.
34:38And you do this all across the pond and you're essentially turning the pond into a giant ice cube tray. If you're old enough to remember ice cube trays, welcome to business history. He has this other innovation that I love, which is after you've cut it, it's still hard to get the ice up out of the lake. And he figures out some kind of a system with like pulleys and horses pulling on ropes where the pulleys are actually lifting these ice blocks out of the frozen pond so they can be put into the ice house. Like industrial ice. It's industrial ice. That is exactly what it is. Frozen by nature. So now.
35:15Put that on the label, yes. Our hero has what he needs. He has demand. He has supply. Ice is going to the moon. Or at least it's going to India. Long way away. After the break.
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38:02We're back. It's 1833, and a Boston merchant comes to Frederick Tudor with an idea. Boston has this booming trade with India. All this stuff is coming from India to Boston. But not that much stuff is going from Boston to India. There is a trade deficit, basically. And so what that means, and I mentioned this earlier in the show, is, you know, you have ships coming in from India with whatever, cotton, spices, and then going back largely empty. Ship owners, remember, putting rocks in as ballast in those outgoing ships. So this merchant is like, Frederick Tudor, what if instead of rocks, we had frozen ice?
38:47The only kind, the best kind of ice. What if we put ice in there and sent it to India? And Frederick Tudor was like, Where have you been all my life? Yes, yes, a thousand times yes. And so they make the deal. Tudor is going to send 180 tons of ice on a single ship. This is farther than he's ever sent a ship full of ice. It's going to be very hot. It's going down across the equator around the tip of Africa. And so, you know, he starts going down to the ship multiple times a day, builds this, what he calls a sheathing of boards. So sort of, again, like kind of trying to turn the hold of the ship into a thermos, builds this sheathing of boards around the ice, insulates it with hay and tan, which apparently is ground up bark on all sides.
39:37It's like styrofoam, right? Because it would be light and it would have lots of little holes of air in it. I guess so, yeah. He calls the insulation an unbroken stratum on top ends, sides and bottom. And he hopes that something like two thirds of the ice will make it. He knows a lot's going to melt. The ship sails out of Boston Harbor on May 12, 1833, bound for Calcutta, which today we call Kolkata. And Tudor, at this point, is too old and, frankly, too rich to go by himself, sends somebody in his place. And his ice sails off out of Boston Harbor. I like to picture him standing there, eating an ice cream cone, watching it until it sails over the horizon.
40:16and, you know, goes across the Atlantic, down around the tip of Africa, up through the Indian Ocean, 16 ,000 miles or so, four months at sea. It still amazes me that in the 1800s you could do this. It shouldn't work. It shouldn't work. It's 90 degrees when the ship gets to India, and the ice, of course, is melting fast. And Calcutta is like 70 miles up this river from the sea. And as the ship with the ice is coming upriver, people in Calcutta start hearing this rumor, basically, that a ship from Boston full of ice is coming up the river. And there's an article about it in this newspaper called the Calcutta Courier, which is the paper sort of of the British colonialists in Calcutta.
41:03The Yankees are so inventive and so fond of a joke at the expense of the old country that we had some misgivings about the reality of Brother Jonathan's frozen manifest and suspected him to be coolly indicting a hoax. So easy to laugh at. Slippery, slippery. They can't resist. They can't resist it. I feel like I would have covered this back at the time. It's ice on a boat. It's so crazy. It's a perfect story for you. They think it's a joke. But they find out it's real. You know, it's still coming up the river. They find out, yes, it's real. And once they find out it's real, they're like, get that ice here right now.
41:42The newspapers actually start a campaign to send a steamship to tow this sailing ship up the river so it gets there faster, to waive the customs duties when it arrives so they can unload it before it melts. The clock is ticking. The clock is ticking. The ice is melting minute by minute. And in fact, it all happens. They do tow the ship up. They do waive the customs duties. and the ship arrives and there is ice left. We don't know how much left, but there is ice. The newspaper Calcutta Courier writes, the names of those who planned and have successfully carried through the adventure at their own cost deserve to be handed down to posterity with the names of other benefactors of mankind, the importer of the potato into Europe, the disseminator of useful plants in regions where they were unknown and the authors of every species of discovery.
42:28They're saying this is one of the great human achievements. Ice to India. Yes, yes. In fact, the colonial governor in Calcutta gives Tudor's guy some kind of like specially engraved silver cup, like a trophy kind of for this incredible breakthrough. And they become in Calcutta dependent on ice. When a shipment is late or doesn't arrive, it gets rationed. People will get a note from their doctor, like if they have a fever, which, you know, people got a lot, they would use ice for the fever. So it becomes this necessary part of life there. And Tudor gets a monopoly on the Calcutta ice trade. He's still got that same move, and it works for him.
43:11Over the next few decades, you know, he keeps selling ice to Calcutta, and he makes hundreds of thousands of dollars in profit, which, of course, would be, you know, millions in today's money. And so Tudor has done it. He has turned this thing that sounds like a joke into a great business and seems to have a nice life. He gets married at 50, has kids, and is like a happy rich guy in Boston, as far as we can tell. And so there is still kind of this question, which is, how does it make sense? How does this work that you can send ice from Boston to India and it takes four months and it's still a profitable business?
43:54Yeah. And in other words, what did he see that no one else saw? Yeah. Yeah. And and, you know, at the beginning of the show, I said that the story of the ice trade is at some level a story about the most underrated idea in economics. So here it is. The idea is opportunity cost. Love opportunity cost. Give us give us the definition. If you are doing something, its opportunity cost is basically the highest value option that you do not choose. It's the second best thing. You mentioned when I brought this up the other day, you mentioned business school. You said they always tell you this on the first day of business school.
44:28Yeah, because if you think about it, there is the cost to go to business school, which is high in tuition. But really, the opportunity cost is even more significant, which is if you are sitting in business school, you are not working at Goldman Sachs or at JPMorgan Chase, where you might be making$200 ,000,$300 ,000 a year. That is your opportunity cost for the education that you're getting. And so think about opportunity cost in this story. There's the most obvious one, those ships sailing out empty, right? Like the opportunity cost for that space is zero, essentially, right? A merchant is going to, you know, sell space to the highest bidder, right?
45:08If nobody's bidding, you can get that space real cheap. But it's not just the ship itself, right? There's the ice, the ice that is just sitting there on a pond in Massachusetts in January. Yeah, there is no value to that ice other than ice skating. Yeah, which nobody's going to pay for. They weren't paying to skate on ponds in 1830. There's a third kind of opportunity cosplay here as well. And this one is a little more subtle, which is labor. The workers cutting the ice. Tudor mostly hired farm workers. They're doing this work in January and February. What's the opportunity cost of the time of a farm worker in January?
45:46There's nothing for them to do while there's snow on the ground and ice on the lakes. Huddling by the fire to keep warm until spring is not a job. They're not giving up a lot of money to go out and get paid to cut ice. And, you know, adding all these things together, I thought of this business cliche that I generally don't care for, which is adding value. Everybody's always talking about how they're adding value. What's the value add? But Tudor really is, like, he is taking underemployed people to harvest an unused resource. Free resource, really. And put it in an empty ship and send it to somewhere where people really, really want it.
46:24It's the combination and the logistics that makes it valuable. It makes it immensely valuable. Immensely valuable, which is why once he figured out how to keep the ice from melting, He built an industry and got rich. Now, despite his best efforts to get monopolies in all those places, he didn't have a monopoly everywhere. And lots of other people got into the ice business because they were like, oh, there's just ice sitting there. Let's go cut that ice. And eventually that pond where Wyeth, his innovator, was cutting filled up with ice cutters. And so they moved on. It's an ice rush. Yes, there was an ice rush.
47:02So they moved on in 1846 to a pond a little farther from town, a pond called Walden Pond. One of the most famous ponds in American history because this is where Henry David Thoreau, or how do you say it? I guess Thoreau, somebody told me, but I kind of like Thoreau. Yeah, he's like he's living by himself and contemplating nature and the nature of humanity. This is the year when he lived on Walden and wrote the famous book Walden Pond. And in fact, amazingly, delightfully, in the book, in Walden, there is this scene where one day a hundred guys show up out of nowhere and start cutting blocks out of the pond.
47:41And they called blocks at the time cakes, by the way. He's going to call them cakes. Cakes of ice. Okay. This is from Henry David. And these, cakes of ice, being sledded to the shore, were rapidly hauled off to an ice platform and raised by grappling irons and block and tackle, worked by horses onto a stack as surely as so many barrels of flour. And they're placed evenly side by side and row upon row as if they form the solid base of an obelisk designed to pierce the clouds. They told me that in a good day they could get out a thousand tons. They stacked up the cakes thus in the open air in a pile 35 feet high on one side and six or seven rods square, putting hay between the outside layers to exclude the air.
48:24At first it looked like a vast blue fort or Valhalla, but when they began to tuck the coarse meadow hay into the crevices, and this became covered with rime and icicles, it looked like a venerable moss-grown and hoary ruin built of azure-tinted marble, the abode of winter. so that's a guy who did go to harvard just saying i'm just saying he did not drop out of harvard to become an entrepreneur did he drop out he might have dropped out to become a writer i don't actually know i think i think henry david graduated from harvard well done i don't know if tudor ever uh read the book i don't know about the timing i don't know if he encountered it i don't know what he would have thought of it um but he seems to be doing fine he's a rich old man mostly living with his family on that little island off boston he does actually make some kind of little amusement park there and sell ice cream.
49:13Again, still eating ice cream to the end. And he dies in 1864. And by this time, ice, just naturally frozen ice, is this major American industry. Because like any technological innovation, it makes other innovations possible. Yeah, yeah. I mean, you know, I knew a little bit the story of like Swift and Armor and the sort of growth of the meatpacking business when they figured out that you could transport meat if you put it on refrigerated rail cars. Yeah. But I assumed that was, you know, whatever, artificial refrigeration. No, it was ice. It was pond ice. It was the ice industry. And in fact, along the railroad tracks, the big meatpacking companies would have these ice houses where they would store the ice so they could replenish the ice in their refrigerated ice cars.
50:03Similarly, you have the beer business taking off in the later part of the 1800s with this wave of German immigration to the Midwest. And so Milwaukee, German immigrants are making, I guess it's a lager, right? German style beer and German style beer needs to be refrigerated. So, again, ice industry. You get a residential ice industry in cities like New York and Philadelphia. People get little ice boxes in their house and they get daily ice deliveries. And in fact, they come to rely on it to keep food fresh. And so now in the winter, everybody in New York and Philly is paying attention to like, how thick is the ice in Boston?
50:40How thick is the ice in Maine? Are we going to have an ice famine come summer? They need it now. The only place ice didn't go was the cafes of Paris, where they still look down on you if you ask for ice in your water. It is water. You want ice? Ice, I don't know. It is de l 'eau. People are developing artificial refrigeration, you know, around this time. They're working on it. They're actually figuring it out. But there is this interesting business idea really here. And I've encountered it interviewing people who are doing like energy transition stuff, you know, coming up with kind of clean energy alternatives to existing things.
51:16And that is a lot of the time they've figured out the new technology. They can do the thing, but it's more expensive because the thing they're going up against is this optimized, hyper-efficient giant industry. And that is what natural ice is by the end of the 1800s. It's big and it's efficient and it's cheap. And so, in fact, you don't really see artificial refrigeration displace natural ice until, like, into the 1900s. Because you're like, I invented this machine that makes things cold. And they're like, yeah, that's called ice. It's free. It's literally free. And so, yeah, it has to be cheaper and better before it gets widely adopted.
51:54To finish the show, I want to go back to that idea of opportunity cost, to Tudor's real insight of stringing together these essentially unused things, you know, ice on a pond in February and idle farm workers and empty space and ships and building an industry around it. And, you know, I want to think about what is that today? If you go back, what, I guess 10, 15 years at this point, it was actually the original inspiration for, I know, for Lyft and for Airbnb, right? Originally, Lyft was like, well, you're going there anyways. You're just a normal person. Give somebody a ride. Airbnb was, you know, it's your house.
52:30You got a spare bedroom. Rent it out now and then. Latent capital. So here's a question. What is that now? What is the thing that is just sitting there waiting to be turned into a business? If you're listening, go out and start the business. Or if you don't want to do that, tell us. Write to us. We're at businesshistorypushkin.fm. If you want to listen to the show ad-free, you can do so by subscribing to Pushkin+. You can go to pushkin.fm slash plus to do that. Our showrunner and editor is Ryan Dilley. Our video editor, yes, we're on YouTube, is Matt Nielsen. Our producer is Gabriel Hunter-Chang.
53:11Our engineer is Sarah Bruggear. I'm Jacob Goldstein. And I'm Robert Smith. Thanks for listening.
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From the publisher
Frederic Tudor could get ice any time he wanted. He lived in chilly Boston and his family had a lake that froze over in the winter. Harvesting ice and storing it was a normal thing in New England in the 1800s, but Frederic decided he'd make a fortune if he could ship ice to the warmest places on earth. And everyone thought this was the dumbest business idea of all time!
No one would back Frederic's plan - no one would even let him rent a ship to carry his ice. For decades he tried and failed to get his ice business running. He even ended up broke and in jail. But finally he prevailed and became a wealthy and celebrated figure - who changed the world.
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