My aunt gave me the Klein Stein for graduation (a klein bottle in the shape of a beer mug). It's actually not that hard to clean. You rinse it with water and th

My aunt gave me the Klein Stein for graduation (a klein bottle in the shape of a beer mug). It's actually not that hard to clean. You rinse it with water and then bake it in the oven at ~200F for an hour and you're good to go. It is a bit more involved than a normal mug but it's really not as bad as you would expect.