
Introducing the Otto Siena 75—a high-performance commercial grinder made for cafés that need speed, consistency, and control during peak service. If your bar is pulling a high volume of espresso daily, the Siena 75 is built to keep up without compromising grind quality.
With 75 mm flat burrs, it’s designed to produce a more consistent grind at higher output—helping you maintain stable extraction and flavor even when orders stack up. The result: smoother workflow for your baristas and better-tasting espresso for your customers.
Durable, dependable, and dial-in friendly, the Siena 75 is a strong choice for busy coffee programs that want a grinder that performs like a true workhorse—day after day.



