#5360: Ful Medames: Slow Cooker vs Pressure Cooker

Dried fava beans, a slow cooker, and one overnight soak — the idiot-proof path to Egyptian street-style ful medames.

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Ful medames is a dish that punishes impatience. Dried fava beans with the skin on are one of the most stubborn legumes in the kitchen, and the difference between buttery and chalky comes down to bean selection, soak chemistry, and appliance choice.

The bean matters first. Split favas turn to mush; large broad beans stay tough-skinned. What you want are small round dried favas with the brown skin on — Egyptian ful baladi — the bean that collapses under a spoon.

The reason beans resist cooking is pectin, the glue between plant cells. Heat converts insoluble pectin into a soluble form so the cells fall apart. But old beans, or beans stored warm and humid, let calcium and magnesium ions bind to that pectin and reinforce it — the hard-to-cook defect. Boiling won't fix it. Sodium will, which is why the old "never salt bean water" advice is incomplete. A soak in water with a teaspoon of baking soda and a tablespoon of salt weakens the pectin structure and shortens cook time dramatically.

For an overnight run, the slow cooker wins. It sits around 200°F, rewards neglect, and is the most historically faithful modern version of a dish whose name means "buried beans" — medieval Cairo ful makers simmered copper cauldrons in the residual heat of the public baths after closing. The pressure cooker is faster but far less forgiving: with a brined bean, the window between perfectly soft and disintegrated is about fifteen minutes.

A no-soak path is defensible — the brine mechanism works during cooking too — but it takes eight to ten hours, the skins split, and the broth clouds. The soak costs thirty seconds the night before.

The finish is the easy part: mash about a third of the beans in the pot, add toasted cumin crushed with garlic and salt, olive oil, and lemon at the very end, off the heat. Acid is a finishing move. The pita is the utensil.

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#5360: Ful Medames: Slow Cooker vs Pressure Cooker

Corn
Daniel's got a whole pre-fast logistics question this week. He wants ful medames ready by morning, starting from dried beans, and he wants it idiot-proof. He's got a pressure cooker and a slow cooker, he's a stickler about undercooked beans, and he wants to know if there's a soak protocol and a no-soak protocol, which appliance handles the job best, and how to get that Egyptian street vendor finish — mashed beans, cumin, lemon, olive oil, pita — without a second cooking stage in the morning.
Herman
The man is asking the right question, because ful medames is a dish that punishes impatience. Dried fava beans with the skin on are one of the most stubborn legumes in the kitchen. I've seen people give up on them entirely and switch to canned, which is fine, but it's not the same.
Corn
Before we get to the protocol, the bean itself matters more than the appliance. If Daniel grabs split favas, the kind used for falafel, he's going to get mush. If he grabs the big broad beans, the ones that look like flattened golf balls, he's going to get tough skins and a completely different texture. What he wants are the small round dried favas with the brown skin on — Egyptian ful baladi. That's the bean that goes buttery and collapses under a spoon.
Herman
And that spoon collapse is the whole game. Ful medames lives or dies on texture. Soft enough to mash with the back of a fork, not blended into hummus. There's a food science reason the skins stay tough, and it's the same reason Daniel keeps hitting slightly undercooked beans even after long cooks.
Corn
I'm listening.
Herman
Bean softening is a pectin problem. Pectin is the glue between plant cells. In a hard dried bean, that pectin is in an insoluble form that holds everything rigid. Heat converts it to a soluble form, the cells fall apart, the bean goes creamy. But here's the trap: if the beans are old, or stored hot and humid, calcium and magnesium ions bind to that pectin and reinforce it. That's what food scientists call the hard-to-cook defect. You can boil those beans for six hours and they'll still have a chalky center.
Corn
So the bean isn't just slow. It's actively resisting.
Herman
And the fix is counterintuitive because most people grew up hearing you should never salt bean water. That advice is wrong, or at least incomplete. Sodium displaces those calcium and magnesium ions. A little salt in the soak water, or a little baking soda, weakens the pectin structure and lets the heat do its job. Serious Eats tested this properly — a brine with salt and baking soda gave the softest beans and the shortest cook time for black beans and kidney beans, and the same mechanism applies to favas.
Corn
So the idiot-proof protocol starts with a soak that isn't just water.
Herman
Right. Here's the soak protocol. Daniel takes his dried ful baladi beans — let's say five hundred grams, which is about a pound, enough for several breakfasts — and soaks them in two liters of water with a teaspoon of baking soda and a tablespoon of salt. Minimum six hours, ideally overnight. The baking soda attacks the skin, the salt attacks the pectin. In the morning he drains and rinses.
Corn
Then the appliance question.
Herman
Then the appliance question. And here's where I'm going to give a slightly annoying answer. The pressure cooker is faster but less forgiving. The slow cooker is slower but nearly impossible to ruin. For an overnight protocol where Daniel is asleep and not monitoring anything, the slow cooker is the right tool.
Corn
Explain the forgiving part.
Herman
A pressure cooker at high pressure runs around two hundred fifty degrees Fahrenheit. That's hot enough to blow through the pectin conversion quickly, but if the beans have been brined with salt and baking soda, the margin between perfectly soft and disintegrated is maybe fifteen minutes. Serious Eats has a direct warning about this: if you brine and pressure cook, cut back on the salt and soda or the beans turn extremely mushy. And with favas, which are naturally softer than kidney beans, that window is even tighter.
Corn
So the pressure cooker is the fast car you can wrap around a tree.
Herman
The slow cooker on low sits around two hundred degrees, give or take. It's doing exactly what the name ful medames means — buried beans. The dish's whole history is slow heat. In medieval Cairo, the ful makers used the embers of the public baths after they closed at night. Huge copper cauldrons of favas simmered in that residual heat until morning. Lane, writing in eighteen sixty, described beans cooked in a pear-shaped earthenware vessel buried up to the neck in hot ashes. The slow cooker is the most historically faithful modern version of that.
Corn
Buried beans. I like that. The Crock Pot is the Princess Baths with a thermostat.
Herman
And it's the appliance I'd recommend for the overnight run. Soaked beans, drained and rinsed, into the slow cooker. Cover with fresh water by about two inches. Add a peeled garlic clove or two, a glug of olive oil, maybe a pinch of cumin. Low setting for seven to eight hours. He goes to bed, he wakes up, the beans are done.
Corn
What's the failure state there?
Herman
Almost none. If he oversleeps an extra hour, the beans are softer. If the water level drops a bit, they're still submerged enough. Slow cookers are the opposite of pressure cookers — they reward neglect.
Corn
Now the no-soak protocol. Daniel asked for both.
Herman
Here's the honest part. I couldn't find a single named Egyptian recipe that brands itself no-soak. Every source says don't skip it. Chez Nermine, The Matbakh — they all insist. But the food science says a no-soak path is defensible, because the brine mechanism works during cooking, not just during soaking. The long slow cook substitutes for the soak.
Corn
So what's the protocol?
Herman
Dried beans straight into the slow cooker. Two liters of water for five hundred grams of beans. A teaspoon of baking soda and a tablespoon of salt in the cooking water itself. Low setting for eight to ten hours. The extra time does the hydration work the soak would have done, and the soda keeps attacking the skins the whole way.
Corn
Ten hours is a long night.
Herman
It's a long night, and that's the trade. The no-soak version is simpler on the front end and riskier on texture. The beans can go a little blowy, the skins can split, and the broth gets cloudier. It still tastes like ful. It just won't win a beauty contest. If Daniel wants the street vendor texture, the soak is worth the thirty seconds of effort the night before.
Corn
Thirty seconds? He has to remember to do it before bed.
Herman
That's the real idiot-proofing problem. The protocol isn't hard. The remembering is hard. My suggestion: he ties it to something he already does every night. Put the beans in the soak when he's making Ezra's dinner or cleaning up. The soak vessel sits on the counter, not in a cabinet. Visible.
Corn
Now the pressure cooker case, because Daniel owns one and he's going to ask why not.
Herman
The pressure cooker has one real advantage: speed. If he forgot to soak, or he wants ful for lunch instead of breakfast, the pressure cooker is the only option that gets him there in under two hours. Soaked beans, high pressure, forty-five minutes, natural release. Check one bean by crushing it between his fingers. If it's still chalky, another fifteen minutes. No-soak beans in the pressure cooker, maybe an hour and fifteen, hour and a half, with the same check.
Corn
But he asked for overnight.
Herman
And the pressure cooker can't do overnight. It has a keep-warm function, but that's not cooking. It holds the beans at serving temperature after the cook finishes. If he starts it at midnight, it's done at one in the morning and then sits on warm for six hours, slowly breaking down the texture. He'd wake up to bean sludge.
Corn
So the verdict is slow cooker for the overnight protocol, pressure cooker for the emergency protocol.
Herman
That's my verdict. And I'll go one step further. If Daniel is serious about making this a daily breakfast, the slow cooker earns its counter space. It's the set-it-and-forget-it appliance. The pressure cooker is the tool you reach for when you forgot.
Corn
Daniel also asked about the Egyptian appliance. He remembered there being specific machines whose sole purpose is ful.
Herman
And this is where the memory is half right. The traditional vessel is called a damasa, sometimes a qidra or kedra. It's a pear-shaped, hand-hammered copper pot made in Egypt specifically for ful. You can buy them in sizes — a mini one for one person, a one kilo, a two kilo. They run about sixty-five to seventy dollars. But it's a pot, not a plug-in appliance. It goes on a stove or in an oven, and the pear shape is the engineering: the narrow neck reduces evaporation, the wide belly holds the beans in a single mass, and the copper conducts heat evenly.
Corn
So it's not a machine. It's a really good pot with a specific shape.
Herman
And in modern Egypt, what's marketed as a ful appliance is usually just an electric pressure cooker with a ful setting. There's no standalone ful-only countertop machine I could find sold outside Egypt. Daniel's memory is probably a mashup of the copper damasa and the modern electric pressure cookers you see in Cairo kitchens.
Corn
Which means he already owns the modern equivalent.
Herman
He owns two of them. The slow cooker is the damasa's spiritual descendant. Same low heat, same overnight timeline, same buried-beans logic. He doesn't need to import a copper pot from Egypt. He needs to trust the Crock Pot.
Corn
Now the morning finish. Daniel wants the street vendor version — beans, cumin, lemon, olive oil, pita — with no elaborate second cooking stage.
Herman
And this is the easy part, which is good news after all the bean science. The beans come out of the slow cooker already in their own broth, which is the flavor base. He takes a potato masher, or just a fork, and mashes about a third of the beans directly in the pot. Not all of them. The texture should be chunky — some whole beans, some broken, the broth thickening from the released starch.
Corn
The Serious Eats technique was toast the cumin seeds, then crush them with garlic and salt.
Herman
That's the upgrade. Toasting cumin seeds in a dry pan for thirty seconds, then crushing them with garlic and salt in a mortar, releases oils you never get from pre-ground cumin. But for a weekday morning, pre-ground cumin is fine. The key move is the lemon goes in at the end, off the heat. Boiled lemon flattens the whole bowl. Acid is a finishing move, not a cooking ingredient.
Corn
So the order is: mash, cumin, salt, olive oil, lemon.
Herman
That's the street vendor order. And the pita is non-negotiable. Ful is a scoop food. The pita is the utensil.
Corn
Daniel mentioned eating it before the Yom Kippur fast. There's something fitting about that. A pre-fast meal built on the slowest possible cooking method.
Herman
The dish itself is pre-fast logic. Dense, protein-heavy, sticks to your ribs. Fava beans have been doing this job in the Levant for eight thousand years. There were dried favas found at a late Neolithic site near Nazareth. This is the original pre-fast breakfast.
Corn
Let me make sure I've got the full protocol Daniel can print out. Soak version: five hundred grams dried ful baladi, soak overnight in two liters of water with a teaspoon of baking soda and a tablespoon of salt. Morning, drain and rinse. Slow cooker on low, seven to eight hours, covered by two inches of water, garlic and oil optional. Wake up, mash a third, cumin, salt, olive oil, lemon, pita. No-soak version: same beans, straight into the slow cooker, same water, same soda and salt in the cooking liquid, low for eight to ten hours. Same finish.
Herman
That's the protocol. And the pressure cooker emergency version: soaked beans, high pressure, forty-five minutes, natural release, check, maybe another fifteen. No-soak pressure, an hour fifteen to an hour and a half.
Corn
What's the one thing most likely to go wrong?
Herman
Daniel buying the wrong beans. If he walks into a store and grabs split favas because they're easier to find, the whole protocol collapses. Split favas are peeled and halved. They cook in twenty minutes and turn to paste. That's falafel territory. He needs the whole small brown bean. In Jerusalem he can find them in any spice shop or Middle Eastern grocer. They'll be labeled ful or foul.
Corn
And if he can't find them?
Herman
Canned ful is the fallback. Serious Eats actually recommends it as a legitimate shortcut because the canning broth carries the funky fava flavor. But it's not the same texture, and Daniel specifically wants dried.
Corn
One more thing. He said he's tried this before and it's always hard to make. I wonder how much of that is the bean, and how much is the expectation that it should be quick.
Herman
It's the expectation. Ful medames is not a quick dish. It's an overnight dish. The whole point is that the work happens while you sleep. The mistake is trying to compress it into an hour on the stove and then being surprised when the beans fight back.
Corn
So the idiot-proofing is mostly about removing the temptation to rush.
Herman
And removing the variables. Right bean, right soak, right appliance, right finish. The slow cooker does the hard part. The morning is five minutes.
Corn
I keep thinking about the name. Buried beans. The dish is literally named for the cooking method. When you put beans in a slow cooker overnight, you're burying them in low heat the same way those Cairo ful makers buried them in bathhouse embers.
Herman
And the modern version is better in one way. The bathhouse embers were inconsistent. Some nights the fire was hotter, some nights cooler. The slow cooker holds two hundred degrees for eight hours without drifting. Daniel gets the same result every morning, which is what he's actually asking for.
Corn
Consistency. That's the idiot-proof part.
Herman
Consistency is the whole thing. Once he's got the protocol locked, it's the same bowl every morning. That's what the street vendors have too — they've been cooking the same beans in the same pot for years. The consistency is the craft.
Corn
I want to talk about the salt myth for a second, because it's the thing that's going to make Daniel nervous. He's going to read the protocol and think, salt in the soak water? My grandmother said never salt beans.
Herman
And the grandmother advice has a kernel of truth that got distorted. Very old beans, or beans cooked in hard water, can seize up with salt. But the mechanism is misunderstood. Salt doesn't toughen beans. Calcium does. The salt actually helps by displacing the calcium. The reason the myth persists is that people who salted their beans were often also using hard water and old beans, and they blamed the salt instead of the water.
Corn
So the advice should be: salt is fine, hard water is the enemy.
Herman
And if Daniel has hard water in Jerusalem — which many people do — the baking soda matters even more, because it raises the pH and softens the water. The soda is doing double duty: attacking the bean skins and neutralizing the water.
Corn
That's a useful diagnostic. If his beans are always tough no matter how long he cooks them, the water is probably the culprit.
Herman
He can test it. Next time he makes ful, use bottled water. If the beans are suddenly soft, he's got hard water and needs to bump up the baking soda.
Corn
Let's talk about the cumin. He said cumin and a bit of olive oil, maybe lemon. That's the minimalist version. But there's a spectrum here.
Herman
The spectrum runs from plain street ful to loaded home ful. The plain version is beans, cumin, salt, olive oil, lemon. That's what Daniel described and it's a legitimate endpoint. The loaded version adds tahini, crushed garlic, chopped parsley, maybe tomato, maybe chili. The Serious Eats Cairo style has a tahini sauce with garlic and lemon whisked in.
Corn
But Daniel specifically said no elaborate second stage.
Herman
He doesn't need one. The tahini version is just whisking tahini, lemon, garlic, and water while the beans heat. That's not a second cooking stage, it's a sauce. But if he wants the pure street vendor experience, the minimalist version is the right call. Cumin, salt, olive oil, lemon. Done.
Corn
I'd argue the olive oil matters more than people think. A good olive oil on ful is not optional. It's the fat that carries the cumin and rounds out the bean starch.
Herman
The lemon cuts through the heaviness. Fava beans are dense. Without acid they sit in your stomach like a brick. The lemon is what makes it breakfast instead of a dare.
Corn
Which brings us back to the pre-fast context. He's eating this before Yom Kippur. A dense, fatty, high-protein meal is exactly right for a twenty-five hour fast. But the lemon and cumin keep it from being leaden.
Herman
The ancient version of this meal was probably simpler — beans, oil, maybe salt. The cumin and lemon are later refinements. But the core logic is unchanged: fill up on slow-burning fuel before a long stretch without food.
Corn
I'm now wondering about the batch size. He said daily breakfast. How much does five hundred grams of dried beans make?
Herman
A pound of dried favas roughly triples in volume after soaking and cooking. Five hundred grams dry gives you maybe a kilo and a half of cooked ful. That's four to six breakfast portions, depending on appetite. He can make it every three or four days and reheat portions in the microwave.
Corn
Does it reheat well?
Herman
Ful reheats beautifully. The flavors meld overnight. Some people say it's better on day two. The trick is to reheat with a splash of water so the broth doesn't dry out, then add the lemon fresh. Never reheat with the lemon already in.
Corn
The daily breakfast is actually a twice-weekly cook.
Herman
Which makes the overnight protocol even more reasonable. He's not doing it every night. He's doing it Sunday and Wednesday, say, and eating the leftovers in between.

Hilbert: The damasa's not a pot you put on a stove.
Corn
Go on.

Hilbert: It goes in the oven. Or it used to. The pear shape isn't about evaporation, it's about the neck. You fill it to where the neck narrows, put the lid on, and the beans steam in their own liquid. The copper handles it because copper's fine with direct flame, but the tradition I saw was ovens. Bakeries would cook them overnight after the bread was done. Same principle as the bathhouses, different heat source.
Herman
That makes sense. The narrow neck would trap steam and create a kind of low-pressure environment inside the pot. Not pressure-cooker levels, but enough to speed the cook compared to an open pot.

Hilbert: My cousin had one. Brought it back from Cairo in eighty-seven. Copper, green on the outside, tinned on the inside. She used it for years. Put it in the oven at night, took it out in the morning. The beans came out the same every time. She said the damasa was the only pot she never had to watch.
Corn
There's something about a vessel that's shaped for one job. You don't have to think about it.

Hilbert: That's the point of it. The pot knows what it's doing. You just fill it and leave it alone. Same as the slow cooker, except the slow cooker doesn't need an oven that's already warm.
Herman
The slow cooker doesn't cost seventy dollars and ship from Cairo.

Hilbert: No, but it also doesn't last forty years. My cousin's damasa is still in her kitchen. She stopped using it when she got an electric pressure cooker, but she won't get rid of it. Says it's too good a pot to throw away.
Corn
The pressure cooker replaced the damasa?

Hilbert: In her kitchen it did. She's eighty now. Doesn't want to wait eight hours for beans. She does them in the pressure cooker in an hour and says they're almost as good. Almost. She still brings out the damasa for holidays.
Herman
That tracks with what I've read. The modern Egyptian kitchen has moved to pressure cookers for daily ful, but the damasa is still the special occasion pot. It's the same trajectory as every traditional cooking vessel — the new tool is faster, the old tool is better.

Hilbert: She'd tell you the pressure cooker beans are fine, but the damasa beans are ful. The difference is the steam. Pressure cookers blast the beans apart. The damasa lets them fall apart on their own.
Corn
That's the texture thing again. Collapse under a spoon, not blended into hummus.

Hilbert: She never used a thermometer, never timed anything. Just filled the pot, put it in the oven, went to bed. In the morning the beans were done. That's the whole recipe.
Herman
The original idiot-proof protocol.

Hilbert: The original everything-proof protocol. The pot did the thinking.
Corn
Daniel's slow cooker is going to give him ninety percent of that. Maybe not the romance of the copper, but the same hands-off result.

Hilbert: He doesn't have to tin it every few years. Copper pots need re-tinning. The damasa is a beautiful thing but it's work to maintain.
Herman
I didn't know about the re-tinning. That's a real maintenance cost.

Hilbert: Every few years, depending on use. The tin lining wears through and then the copper leaches into the food. Not dangerous in small amounts, but it turns the beans green. You take it to a tinsmith, pay him, wait a week.
Corn
The slow cooker is sounding better by the minute.

Hilbert: For daily use, it is. The damasa is for people who want the thing itself, not just the beans. My cousin wanted the beans.
Herman
Daniel wants the beans. And he wants them without thinking. The protocol we gave him does that.
Corn
One open question I still have. Daniel said he's resolved to make this his daily breakfast before, and it never sticks. Is the protocol really the problem, or is it the resolution?
Herman
It's both. The resolution fails because the protocol is annoying. If you have to think about soaking, think about timing, check the beans, adjust the heat — that's a project, not a breakfast. But if the protocol is fill the pot, go to bed, mash in the morning, the resolution has a chance.
Corn
The slow cooker removes the willpower requirement.
Herman
That's the whole pitch. Willpower is a terrible system for breakfast. You want a system where the default is success. The slow cooker overnight is the default.
Corn
Daniel, if you're listening: right bean, salt and soda in the soak, slow cooker on low, mash a third, lemon last. That's the whole thing.
Herman
If you want the full Egyptian experience, find a damasa someday. But for the pre-fast breakfast tomorrow, the Crock Pot is your bathhouse embers.
Corn
This has been My Weird Prompts. Thanks to our producer, Hilbert Flumingtop.
Herman
Find us at my weird prompts dot com, or email us at show at my weird prompts dot com. We'll be back soon.

This episode was generated with AI assistance. Hosts Herman and Corn are AI personalities.