Can I cook two types of dried beans simultaneously? My bean cooking method is to soak overnight, then cook in a crockpot on low all day. By dinner time the beans are ready. I have only ever done this with a single type of bean at a time. However, I would like to make chili and I have two types of beans (white beans and red kidneys) and am wondering if this method would work if I mix the two types of beans together. Would this be generalizable to other types of beans cooking together, or more than two types of beans at a time?
Most beans can be soaked and cooked together with two exceptions.

The beans should obviously have similar cooking times. For example I wouldn't cook chickpeas with other, harder beans because the chickpeas would be mush. Most varieties do have similar cooking times so this isn't often a problem.

Second, black beans shouldn't be soaked with any other beans because they will stain the other beans a very unappealing gray color. Admittedly this is cosmetic but I soak my black beans separately