We consistently evaluate the materials we use in our coffee brewers. We believe that where we use plastics, they are the best product to use for optimal performance. Plastics do not retain heat, allowing you to maintain consistent coffee quality when brewing back-to-back. In addition to being lightweight and resistant to damage, plastics also offer more functionality than other materials and are inexpensive to replace if accidentally lost or broken.All plastics we use are food-safe and BPA, BPS, BPF, and phthalate-free. These parts should only be washed with warm, soapy water and never be put in the dishwasher to retain malleability. With proper care, these quality components should last a long time.