If it is not modified PET, the thermal deformation temperature is only 70 degrees, and hot water cannot be filled. It is best not to use it repeatedly, especially under high temperature conditions, DEHP is easy to precipitate, which is harmful to human body. If the pet is modified by alcohol, the thermal deformation temperature can reach 110 degrees and can be filled with hot water. It can also be used repeatedly. When cleaning plastic products, it is best to use neutral detergent and wash the inner wall with flexible things to avoid damaging the plastic surface and causing material precipitation.