1 Generally speaking, according to the different materials used, it can be divided into PP (polypropylene) straw cups and Tritan(*** polyester) straw cups, both of which are food-grade materials, which are safe and nontoxic.
2. In addition, the straws of the straw cup include silicone straws and plastic straws. Silicone straw is very soft, which is the material for making pacifiers, with high safety, while hard plastic straw has low safety.