The doggypumper is a reward provider that is ideal for firm fillings such as liver sausage, cream cheese or even wet food. By squeezing out the contents through an opening at the top, the dog gets rewarded. In principle, the Doggypumper is dishwasher-safe. However, discoloration can occur if fat residues, ketchup, sauces and the like are still on the remaining contents or dishes. We do not guarantee that! If in doubt, please hand wash our products to be on the safe side. Discoloration of products often happens because foods sometimes contain dyes and these are rinsed out of the food at high temperatures and settle on dishes or plastic. We do not guarantee discoloration.