
Meet the Otto Siena 85—a heavy-duty commercial grinder built for serious volume, speed, and consistency. Designed for busy cafés and high-demand coffee programs, it helps your team keep service moving while staying locked in on espresso quality.
With 85 mm flat burrs, the Siena 85 is made for efficient grinding at higher output—supporting stable extraction and repeatable flavor even during peak hours. It’s the kind of grinder that makes dialing in easier and service smoother, shift after shift.
From its durable construction to its bar-ready performance, the Siena 85 is a smart upgrade for operations that can’t afford inconsistency—because when volume goes up, your standards shouldn’t go down.



