If you have an older crockpot it will work, but the new ones now will reach a boil in about 4 hours even on low. My old crockpot from the early 90's conked out and I got a new one. I thought something was wrong with it ,but my daughter told me that the new ones have to get to a certain temp in a certain time to comply with new food safety guidlines! Just another thing the goverment pokes their noses in. Defeats the purpose of a slow cooker.