Yes, it does matter because the milk, your child, and your own body will be coming into contact with this product often and very intimately. They are all made from BPA-free food-grade silicone that is perfectly safe for your skin, the baby’s tender mouth, and the precious breastmilk from you. The milk will not be contaminated with harmful chemicals such as BPA, Phthalates, or PVC with these wonderful safe pumps.