Pick any dirt or stones from the dried kidney beans. Give it a quick rinse.
Long Soak Method:
Take the kidney beans in a large bowl or pot and add sufficient water. The beans absorb a lot of water and get almost triple the size after soaking. So, it is important to add lots of water.
Cover and let it soak for at least 8 hours (or overnight). Drain the soaking water and rinse the beans two to three times in running water.
Quick Soak Method:
Take lots of water in a large pot and bring it to a rolling boil. Once the water boils, turn off the heat and add the dried kidney beans.
Give it a quick stir, cover and let it sit for two hours. Drain the soaking water and rinse the beans two to three times in running water.
Instant Pot Method:
Add the soaked kidney beans to the inner pot of the Instant Pot. Add salt and five cups of water.
Secure the lid and set the Instant Pot in 'Bean/Chili' mode for 30 minutes. Do a natural pressure release.
Stovetop Method:
Take soaked kidney beans and salt in a large pot and cover with several inches of water. Bring it to a boil and let it boil for 20 minutes on high heat.
Reduce the heat after 20 minutes, and cover with a lid, leaving a small gap for the steam to escape. Check once every 30 minutes to ensure there is sufficient water. Simmer for 1½ to 2 hours or until the beans are done to your liking.
Notes
Soak dried kidney beans in water before cooking. This helps soften the beans, reduces cooking time, and also removes harmful substances. Aim for at least 8 hours, or use a quick soak method.
After soaking, rinse the beans thoroughly under cold running water.
Use fresh water for cooking the beans, discarding the soaking water.
If you are cooking on the stovetop, ensure you boil the beans on high heat for the first 10 minutes. Reduce heat and cover only after that.