Since beans get bigger as they cook, you don’t want to overload the slow cooker with too many. Allow plenty of room for the beans to cook – about 1 cup of soaked beans per 1 quart of a slow cooker.u003cbr/u003eIf you have a 4-quart slow cooker, 3-4 cups soaked beans should fit. I have this u003ca href=u0022http://amzn.to/1UdMIcOu0022u003e6-quart slow cookeru003c/au003e and 6 cups of soaked beans cooks up nicely with a bit of room to spare.