I love cooking dried beans in my Instant Pot, but finding half the skins split open isn't exactly the result I'm after!
America's Test Kitchen recommends soaking 1 pound of dried beans in 4 quarts cold water with 3 tablespoons table salt for 8–24 hours. Drain, rinse, and cook.
Instant Pot's Basic Dried Pinto Beans recipe cooks unsoaked beans on High Pressure for 43 minutes, listing about 45 minutes of cooking time. Convenient? Absolutely. But a salty soak can give you better texture.
How to Brine Beans Before Pressure Cooking
This method works for pinto, black, and kidney beans:
Ingredients
- 1 pound dried beans
- 4 quarts cold water
- 3 tablespoons table salt
Instructions
- Sort and rinse beans, removing any debris.
- Dissolve salt in water. Add beans and soak at room temperature for 8–24 hours.
- Drain and rinse thoroughly.
- Add beans to the Instant Pot with fresh cooking water, keeping within the appliance's fill limits.
- Cook on High Pressure using the soaked-bean times below, followed by a natural release of at least 15–20 minutes.
Short on soaking space? Use 2 quarts water and 1½ tablespoons salt instead. America's Test Kitchen found this works equally well when beans remain submerged.
Here's more on soaking and brining dried beans.
Instant Pot Cooking Times
| Beans | Unsoaked | Soaked |
| Black | 25–27 minutes | 8–10 minutes |
| Kidney | 35–40 minutes | About 10 minutes |
These are high-pressure times, followed by natural release. Bean age and variety can affect tenderness.
The difference is clear in this Instant Pot black bean comparison.
Why Salt Makes Bean Skins Tender
I grew up hearing that salt makes beans tough. Apparently, we've been giving salt a bad reputation!
America's Test Kitchen explains that sodium replaces some calcium and magnesium ions in bean skins. This helps water penetrate, softening the skins and reducing splitting.
Better still, sodium only travels partway into the beans, so the effect concentrates near the surface rather than throughout the interior.
That means tender skins without sacrificing the creamy centers.
Why Not Just Salt the Cooking Water?
Harold McGee's guidance, discussed by CooksInfo, recommends brining overnight, then draining and rinsing before cooking.
Salt gradually softens the skins during soaking. Cooking beans directly in heavily salted water, however, can sometimes leave their interiors mealy or gritty.
Nobody wants beans that taste like they've spent the afternoon rolling around in sand!
Forgot to Soak Overnight?
America's Test Kitchen has a handy quick-brine alternative.
Bring beans and salted soaking water to a boil, cover, and let stand for 1 hour. Drain and rinse before cooking.
You can also quick-soak beans in the Instant Pot:
- Cover rinsed beans with water.
- Cook on High Pressure for approximately 5 minutes.
- Allow a natural release, then drain.
Continue with soaked-bean cooking times.
The difference? Quick-brining provides the salt treatment, while pressure quick-soaking mainly speeds up hydration.
America's Test Kitchen also found that overnight-soaked beans had fewer split skins, sometimes called blowouts, than unsoaked beans.
Don't Rush the Pressure Release
Quick release can encourage skins to burst. A gradual pressure drop is gentler.
Many bean recipes recommend 15–20 minutes or longer of natural release, including guidance on cooking different beans in an Instant Pot.
It's worth waiting a few extra minutes instead of opening the lid to bean confetti!
Is No-Soak Cooking Still Worth It?
Absolutely. Instant Pot's official pinto bean method cooks unsoaked beans with water or stock and salt for 43 minutes on High Pressure.
It's convenient when dinner wasn't planned yesterday.
But when I want beans that hold their shape, brining is worth the extra step. The goal isn't just getting them cooked; it's keeping those skins tender and intact.
The Bean Trick Worth Remembering
For 1 pound dried beans, use 3 tablespoons table salt and 4 quarts cold water, soaking 8–24 hours.
Alternatively, use 1½ tablespoons salt in 2 quarts water.
Drain, rinse, pressure cook according to variety, and allow at least 15–20 minutes of natural release.
Sometimes the old-fashioned soaking bowl deserves a place beside the Instant Pot!
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