Optimized airflow in counterflow mode sends heat directly to the heart of the beans, giving you maximum efficiency and an option for low power use.

L100 ULTRA TECHNICAL SPECIFICATIONS

• Convection drum roaster
  Develop coffee evenly and quickly with no risk of scorching.

• Standard power supply
  Australian Certiified 230 V 1650w 50–60 Hz.

• 50–200 g per batch
  Roast larger batches with our 200g kit

• 14–16 kg
  The wood panel model is 14 kg, black aluminum is 16 kg.

• 266 x 375 x 410 (mm)
  Compact footprint for ease of use.

• Built-in chaff collection
  Roast 2+ kg of coffee before emptying chaff drawer.

L100 ULTRA FEATURES

• Automatic roasting
  Hands-free roasting with smart profiles that adapt to your beans.

• Manual roasting
  Take over at any time, with precise control over power, airflow and RPM.

• Automated between-batch protocol
  Reset the thermal energy of the machine between batches, for perfect profile replication.

• Drum counterflow mode
  Reversible drum allows option for direct airflow to the heart of the beans for ultra-efficient gentler heat transfer.

• Power control
  Use temperature-based profiles or take direct control of the power.

• Fan control
  Automatic or manual control of airflow and drum pressure.

• Drum speed control
  Automatic or manual control of drum RPM.

• Separate cooling fan
  Immediately start roasting the next batch while previous batch cools.

• Dual fan system
  Unique ‘push-pull’ fan system for independent control of airflow and drum pressure.

• New interface design and controls
  All-new touchscreen interface with roasting info at a glance, more intuitive controls and easier access to the settings and info you need.

• Full color screen
  Sleek new interface offers more customization to match the roaster’s design aesthetic, with dark or light modes.

• WiFi 5 GHz / BLE
  All new WiFi module for easy connectivity and faster, more stable networking.

• Extra-tough heating elements
  Redesigned to operate at higher temperatures for longer, and to better withstand power outages.

• Trier for visual checks
  Monitor your roast by sight and smell, just like on a production roaster.

• Peli-case available for travel
  Protect your ROEST with our watertight, crushproof, and dustproof case.

L100 ULTRA SENSORS

• Air temperature
  Monitor temperature of the air inside the drum.

• Bean temperature
  Fast, responsive BT probe for manual roasting.

• Inlet temperature
  Profiles adapt to ambient changes or power supply fluctuations.

• Exhaust temperature
  Monitor air temperature after contact with the beans.

• Drum temperature
  Get perfect consistency by monitoring the heat in the roaster itself.

• First crack detection
  Automatically mark first crack and end the roast based on development time.

• Cooling tray warning
  A gentle reminder to take out the previous batch before the next one ends.

ROEST innovations explained

First crack detection

ROEST is the world’s first sample roaster with automatic First Crack Detection—AI technology that identifies and registers first crack by sound.

Marking first crack automatically enables the roaster to control development time and tailor the length of each roast to the bean. This ensures each coffee can reach its full flavor potential with minimal oversight.