sivetz coffee

Sivetz Coffee has been building fluid-bed roasters in Corvallis, Oregon since 1970. founded by Michael Sivetz, the company pioneered the use of pure convective heat transfer for coffee roasting, a significant departure from traditional drum methods. their machines use hot air to suspend and roast beans in a fluidized bed, which allows for faster heat transfer and more uniform development. the result is a cleaner roast with less smoke and chaff management compared to drums. Sivetz roasters are known for longevity: machines from the 1980s are still in active production with readily available parts. the current lineup centers on the SRM15, though they've produced various capacities over the decades. the manual controls give experienced roasters direct command over inlet air temperature and airflow with immediate response. these are purpose-built machines for roasters who want the specific cup profile that convection roasting delivers and don't mind the learning curve that comes with a completely different heat application method. best suited for operations that value consistency, low maintenance, and the distinct flavor characteristics of air-roasted coffee.