You can judge whether kidney beans are cooked or not by observing the color or smelling them.

1. Observe the color: When kidney beans are ripe, their color will become brighter and more translucent. This is because the starch in the kidney beans will be converted into sugar, thereby increasing its color. of sweetness.

2. Smell: When kidney beans are cooked, they will emit a fragrant smell because the aroma substances in them are released. If you can smell the aroma of the kidney beans, they are probably cooked.

The seeds of mature kidney beans will turn brown or yellow. You can try dipping your fingers in water and gently squeezing the seeds. If the seeds have become hard, brittle and brittle, the kidney beans should be ripe. .