I had a smaller crock pot and the inside didn't come out. It started to be a real pain to wash. So for Christmas the other year I got a new one where the inside came out. One thing I didn't really pay attention too, is that it is bigger. Some of the things I cook in it are too small for it and I burn things to the edges. Well, then I did BBQ chicken in it and I really burnt stuff to the edges! I scrubbed it, I soaked it in boiling hot water with dish soap for days, and so much more and it was not coming off. Then I read online to use baking soda and vinegar... AMAZING!!!!
I poured a little vinegar over the spots, sprinkled baking soda in and made a paste with it that I stuck right over the spots. Let it sit over night and in the morning I poured a little more vinegar on it and ... it was a miracle... the hard as rock stuff was peeling off!!!!!!! I couldn't believe it!!!!!!! I actually did the baking soda and vinegar one more night because mine was really bad and it's basically back to new!!! Awesome!!!! So easy and it works like magic!!!!!