You learn from mistakes. But I've paid. The bottles have deformed shortly after use. I have observed the time. Guessing that does not happen by the Spülmasche, (at 55 degrees) but by the bubbling! Because I believe that the bottle goes zuneige here. I thought because I drink a lot of syrup that is a neat thing. Cracks I have not noticed (as others write), but still it's not nice when you think at any moment the bottle falls over!