Food Grade Silicone: Ice cream molds is made of high quality, food-grade silicone, the surface is so smooth. The product comes right out of the molds without issue. Applicable Scope: good quality, which is nontoxic and innocuous, our popsicle maker is dishwasher, microwave, steamer, freezer (-40 F or -40 C) and oven safe (up to 446 F or 230 C). Easy to Clean: Non-stick surface handling will release food without a struggle. Special push up design can reduce the chance of spills and the cute shapes will bring more fun to your family. High quality silicone lid can keep the ice pop clean, melt slowly and keeps ice pop from absorbing freezer odors.