Quote Originally Posted by Grog
After about six months, which is about when they start growing mold, throw them away. (Recycle them, of course.) Most of them are made out of porous plastic that won't get really clean even if you wash it in the dishwasher.

Otherwise I just use dishsoap and very hot water. (Don't have a dishwasher...)
How do you get rid of the soap taste? I had mine sitting with dish soap in them, then rinsed and let them sit overnight with just plain water, and now they taste like dish soap again. My dad suggested lemon or OJ and water, which is going to be my next stop.

I stopped short of vinegar and baking soda, I'm not sure I want them to taste like that either