📹 How It Works: Bezzera BZ Group Updated February 25, 2022 19:30 Learn how the BZ group head works on Bezzera BZ07, Bezzera BZ10, Bezzera BZ13 PM, Bezzera BZ13 DE, Bezzera Matrix DE, and Bezzera Duo DE espresso machines. How It Works: Bezzera BZ Group