This question often comes up because the internal components of some Hamilton Beach Brewmasters are made entirely of plastic, and plastic contains a significant part known as Bisphenol-A (BPA). BPA is an industrial chemical often used in the manufacture of durable plastic materials. However, you don’t want your coffee getting contaminated with BPA. But you don’t need to worry. Some technicalities have been made in place to keep the coffee bean filter from BPA. Therefore, the Hamilton Beach brewmaster can be regarded has been BPA free.