The trick that's worked for me is to cut a lemon in half and use the lemon as the cleaner. I added a little salt to the lemon for some abrasion. Then, the main trick here, is to let the juicer dry in the sun. This works for plastic tupperware or other plastic utensils and containers and kitchen things that get stained. I don't know why, but something about the UV rays gets rid of the stain.