- Typical capacity
- This unit is specified as a 20kg roaster, indicating its batch capacity for green coffee beans. Roasting times can vary, but a 20kg batch typically takes 12-20 minutes.
- Heating method
- This unit is gas-heated, commonly using LPG or natural gas. Gas heating provides responsive temperature control, which is crucial for consistent roasting.
- Power supply
- While the primary heat source is gas, roasters of this class typically require a single-phase or three-phase electrical supply for motors (drum rotation, fan, cooling tray) and controls. Common voltages in the UK are 230V or 400V.
- Footprint
- For a 20kg roaster, buyers should anticipate a footprint requiring approximately 1.5m x 1.5m to 2m x 2m of floor space, including clearance for operation and maintenance. Exhaust ducting will also need consideration.
- Cooling tray
- Units of this size almost invariably feature an integrated cooling tray to rapidly cool roasted beans, preventing over-roasting and preserving flavour.
- Construction materials
- Roasters are typically constructed from robust materials such as stainless steel and cast iron for durability and heat retention. Components in contact with coffee are usually food-grade stainless steel.