Ideally, you should soak the dry beans overnight before you cook them. But, you can speed up the process by heating a pot of water and dry beans to a boil for about 10 minutes. You then turn off the heat and let them sit for about 2 hours. I don't cook with a crock pot, so I don't know how long the beans would take to cook in one. If they were just being cooked on the stove, you would be looking at about an hour.