Zerno

ZERNO™  precision coffee grinders are hand-assembled in Chicago and built for those who want to explore coffee at the highest level. ZERNO is a platform for experimentation, learning, and unlocking the full potential of your coffee. The Z1, our flagship grinder, eliminates the long-standing tradeoff between consumer grinders that underperform and commercial machines that don’t belong in a home kitchen. By designing openly with our community and prioritizing modularity, we create grinders that grow with you. ZERNO brings a software mindset to hardware—fast iteration, open dialogue, modularity, and obsessive attention to detail. In just four years, we’ve grown from a prototype shared in online forums to a vertically integrated company with thousands of grinders in kitchens worldwide, giving you complete control to dial in your perfect cup, day after day.