This product is made with #7 polycarbonate Bpa plastic jar lids as well as the lid for the entire device. On the box, it says Bpa free containers, and yet the rest of the materials are all Bpa plastic. This is ridiculous and was very disappointing for me. Condensation from the warm interior causes water to bead on the polycarbonate lid that covers all of the jars. This is probably the only way Bpa's would be able to enter the yogurt. However, the machine itself works great and makes good yogurt, but I don't feel comfortable feeding this yogurt to my kids. Please discontinue this product.