Case Study 1 — Maya's Instant Pot, and the Engineer's Test Kitchen
Maya Okonkwo received an Instant Pot for her thirty-first birthday. Three weeks later, she was on day twelve of what she had begun, only half-jokingly, calling her Test Kitchen. The point of the Test Kitchen was to identify which of her regular recipes the new appliance could improve, which it would ruin, and — Maya being Maya — why.
She had laid out a yellow notepad on the dining table. The notepad was divided into columns: dish, traditional method, traditional time, pressure-cooker method, pressure-cooker time, taste verdict, texture verdict, would-make-again. Aisha had taken one look at the notepad and said, "I love you, but please cook some of this for dinner." Maya had agreed.
The first row was beans. The Instant Pot had won decisively. Soaked black beans went from 90 minutes of stovetop simmering to 8 minutes at high pressure, with broth that Maya actually preferred — thinner, cleaner, the bean flavor more articulate. She wrote "WIN" in the verdict column. She moved to the second row.
Row 2: jollof rice
This was the test that mattered. Jollof rice is the heart of Maya's family cooking — the West African long-grained tomato rice that her mother had been making since before Maya was born, and that Maya had spent years trying to recreate after she moved out of her parents' house in Atlanta. The classic technique involves toasting the rice briefly in oil, building a tomato-pepper base, and then cooking the rice partially submerged in the sauce until the bottom develops the party jollof — the slightly charred, smoky-bottomed crust that Maya's mother considers the prize of the pot.
The pressure cooker recipe Maya had found promised "perfect jollof in 20 minutes." Maya was skeptical. The recipe called for sautéing the onions and tomato base directly in the inner pot of the Instant Pot, then adding rice and broth and cooking under pressure for 4 minutes followed by 10 minutes of natural release.
Maya cooked it. She cooked it carefully. The rice came out tender, evenly cooked, the right red-orange color, the right tomato-and-pepper flavor.
But there was no party jollof. There was no charred bottom. The whole pot was uniformly cooked, which is to say, it was beautifully cooked rice — and yet it was not jollof, not really. It was what jollof would taste like if you removed everything that made it special.
Maya stood at the stove staring at the pot. She thought about why.
The science was clear. The bottom-of-the-pot caramelization in jollof rice is a Maillard-and-caramelization phenomenon: starches and sugars in the rice and the tomato base, in direct contact with the hot bottom of the pot, browning at temperatures well above 140°C as the liquid cooks off. Inside the pressure cooker, the entire pot is at 121°C in a wet environment, and the wet environment is the entire problem. Even after the natural release was complete, the bottom of the pot was still wet. There was no opportunity for the surface to dry out and brown.
Maya wrote in her notepad: "PRESSURE COOKER CANNOT MAKE JOLLOF. The science is wet vs. dry."
She underlined it. Then she crossed out "CANNOT MAKE JOLLOF" and wrote, more carefully, "Cannot make traditional jollof. Need a hybrid approach."
The hybrid
The next weekend, Maya tried again. She used the Instant Pot's Sauté function, which heats the bottom of the pot via a built-in resistance heating element to roughly 200°C — the same effective heat as a stovetop burner. She built her tomato-pepper base in the inner pot. She added the rice. She added the broth. She sealed the pot, cooked at high pressure for 4 minutes, then did a 10-minute natural release.
Then — and this was the change — when she opened the lid, instead of fluffing and serving, she turned the Sauté function back on. She left the rice undisturbed at the bottom of the pot for 8 minutes. The bottom of the pot reached approximately 200°C; the bottom layer of rice, in direct contact, dried out and browned. The middle of the rice, far from the heating element, stayed soft and moist.
Maya scooped the top layers of rice gently to the sides, exposing the bottom. The bottom was caramelized to a beautiful deep red-brown, with the smoky crust her mother would have recognized. She turned it out onto a platter, the party jollof on top in chunks.
Aisha, eating, said, "This is your mother's jollof."
Maya, very quietly, agreed.
The notepad entry
Maya updated her yellow notepad:
JOLLOF RICE. Pressure-cooker only: NO. Hybrid (pressure cook + Sauté finish): YES. The pressure cooker cannot do Maillard browning because of the wet environment. The Sauté function CAN do Maillard browning because it provides direct contact with the hot pot bottom in a now-dry environment after the lid comes off. The dish needs both stages — the pressure cooking handles even rice cooking and tomato-base development; the Sauté finish handles the bottom-of-pot character. Use the pressure cooker for the parts it does well; use a different physics for the parts it doesn't.
She paused, then wrote:
GENERAL PRINCIPLE: pressure cooker = wet, even, fast tenderization. Sauté/oven/grill = dry, surface, browning. A dish that requires both will require both methods, in sequence.
The general principle held up over the next several weeks of Test Kitchen experiments. Pot roast, after pressure cooking, needed a 10-minute pass under the broiler to crisp the surface. Pulled pork, after pressure cooking, needed a hot pan to crisp the shreds. Risotto, surprisingly, did not work in a pressure cooker at all (it needs the gradual stirring and slow stock additions that build creaminess from agitated starch — a process pressure cooking literally cannot replicate). Stocks, on the other hand, were better under pressure — cleaner, more deeply gelatinous, with no babysitting.
What Maya learned
Three weeks into the Test Kitchen project, Maya had a working classification:
Press the button: beans, lentils, stock, brown rice, whole grains, tough cuts of beef and pork, congee, hard-boiled eggs (which are easier to peel after pressure cooking — a structural mystery she resolved by reading some food chemistry papers).
Press the button, then do something else: stews and braises (sear first, pressure cook for tenderness, optionally finish in the oven for crust), pot roast (sear, pressure, broil), pulled pork (pressure, then crisp in a hot skillet), jollof rice and similar (pressure, then Sauté finish for bottom-of-pot).
Don't bother with the button: risotto, paella (the socarrat needs the same dry-bottom treatment as jollof, and pressure cooking makes it worse), pasta (cooks fine on the stovetop in less time than the cooker takes to come up to pressure), eggs you intend to fry or scramble, anything you want to taste of caramelized surface.
She showed the notepad to Aisha at the end of the third week. Aisha, who had eaten about thirty meals from the Test Kitchen, said, "This is the most engineering thing you have ever done. Including the actual engineering you do at work."
Maya laughed. "It's actually not different. I'm just figuring out what the tool is for."
The science underneath
What Maya had discovered, through systematic experiment, is the same thing this chapter has tried to make explicit: pressure cooking is a very specific tool. It cheats the boiling-point ceiling and gives you 121°C wet heat in a sealed environment. That's it. Anything that benefits from 121°C wet heat is in the pressure cooker's wheelhouse. Anything that requires dry surface heat (Maillard browning, caramelization, char), low temperature (custards, delicate fish), reduction of liquid (sauces that thicken by evaporation), or active stirring (risotto) is outside the wheelhouse.
The mistake Maya watched many friends make — and the mistake she had nearly made herself — was to treat the Instant Pot as a replacement for cooking. It is not. It is a replacement for one mode of cooking. Used well, it frees up time and improves results in dishes that suit it. Used badly, it produces a soft, brown-free, slightly characterless version of dishes that needed something else.
She also began to notice the same pattern with other modern tools. Her landlord had installed an induction burner. The induction was great for boiling water, sautéing, and any application that benefits from precise, responsive heat — but it could not do certain things that gas could (charring a tortilla directly over the flame, for instance). Her microwave was excellent for reheating leftovers and steaming vegetables, terrible for cooking from raw. Her air fryer, which she had been skeptical of, was startlingly good at one specific task — fast Maillard browning of small foods — and not very useful for anything else.
Each tool had a wheelhouse. The cook's job was to know which wheelhouse held the dish you were trying to make.
Aisha's verdict
The Test Kitchen project ended after about six weeks. Maya put the notepad in a drawer. Most weeknights now, she uses the Instant Pot for one component of dinner — the protein, usually, or the beans — and assembles the rest in pans on the stovetop. Some nights she uses no Instant Pot at all. Some nights she uses it for everything. The decision is not ideological. It is about what each dish needs.
Aisha said, on the night Maya retired the notepad, "Are you going to write up the Test Kitchen for the food blog you keep saying you'll start?"
"Maybe," Maya said. "If I do, the title is going to be 'The Pressure Cooker is a Tool, Not a Religion.'"
Aisha laughed. "You are insufferable."
"I am useful," Maya said. "There's a difference."
Analyze this
A friend of yours, recently gifted an Instant Pot, complains that it has "ruined every dish I've tried in it." She lists: scrambled eggs, pasta, risotto, fried chicken, vegetable stir-fry, and a pot roast that came out gray and limp.
- For each dish on her list, identify why pressure cooking was the wrong tool. Which dishes are always wrong for a pressure cooker? Which could potentially work with a hybrid approach?
- Write a brief recommendation for what your friend should try cooking in her Instant Pot to actually understand why people love them.
- The pot roast — what went wrong? What could she do differently to get a pot roast she actually wants to eat? (Hint: think about which step of the dish requires which kind of heat.)