Well I put mine in the dishwasher, I'm not sure why it should come to any more harm than the rest of the crockery. I have a Crock-pot (trade-mark) slow cooker so it must be the same thing, I have also got a Morphy Richards slow cooker with an aluminium pot that you can use on the hob. Both are called slow cookers, at least that's what it said on the box and who am I to argue with the manufacturers.