- Typical capacity
- For a 3-barrel sample roaster, each barrel typically handles between 50g to 200g of green coffee per roast.
- Power supply
- Units of this type commonly require a standard single-phase electrical supply for motors and controls, typically 230V, 50Hz in the UK. Heating is often gas-fired.
- Heating method
- This class of sample roaster commonly uses natural gas or LPG for the roasting heat source, as indicated for this unit.
- Footprint
- Sample roasters are relatively compact, typically requiring a benchtop or small dedicated stand space, often less than 1 square metre.
- Materials of construction
- Roasting drums are typically made from cast iron or stainless steel for durability and heat retention, with other components often being steel.
- Control type
- Units of this vintage commonly feature manual controls for drum speed, airflow, and gas burner intensity, allowing for precise roast profile development.