L100 ULTRA

PREMIUM SAMPLE ROASTER

ROEST L100 Ultra

NEW

The best sample roaster just got even better. 

Roast faster, at lower temperatures, or use less power—completely reworked for more effective heat transfer and efficiency.

Why L100 Ultra

Roast up to 2X faster with the option for ultra-fast
4-minute 200g roasts, breaking all preexisting limits.

Improved temperature probe placement and a new pressure sensor unlock even greater precision and control over every roast.

Power meets flexibility with more options than ever, such as standard or counterflow mode, additional airflow control, or roast at lower temperatures.

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.

Upgraded 5GHz WiFi ensures a super smooth user experience with faster, more stable connectivity.

Features and specifications

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

  • Can be configured for 230 V, 115 V or 100 V. 1.65 kW, 50–60 Hz.

  • Roast larger batches with our 200 g kit, or up to 120 g as standard.

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

  • Compact footprint for ease of use.

  • Roast 2+ kg of coffee before emptying chaff drawer.

Technical specs

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

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

  • Reset the thermal energy of the machine between batches, for perfect profile replication.

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

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

  • Automatic or manual control of airflow and drum pressure.

  • Automatic or manual control of drum RPM.

  • Immediately start roasting the next batch while previous batch cools.

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

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

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

  • All new WiFi module for easy connectivity and faster, more stable networking.

  • Redesigned to operate at higher temperatures for longer, and to better withstand power outages.

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

  • Protect your ROEST with our watertight, crushproof, and dustproof case.

Features

  • Monitor temperature of the air inside the drum.

  • Fast, responsive BT probe for manual roasting.

  • Profiles adapt to ambient changes or power supply fluctuations.

  • Monitor air temperature after contact with the beans.

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

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

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

Sensors

More coffee, less work

Simultaneous roasting and cooling means uninterrupted workflow and at least 15 batches per hour or 3kg.

Achieve the lowest true cost per roast, with industry-leading productivity and no daily limits.

Unmatched quality and consistency

Precision automation and between-batch protocol ensure consistency batch after batch.

Convection heating and 6 temperature sensors for unmatched quality and control.

Flexible control options

Fully automatic or fully manual and everything in between.Take control when you want to—ideal for discovery and refining your roast.

Connected roasting

Access your roasting data anywhere with easy, online monitoring.

Follow roasting sessions and adjust settings live, analyze roast logs, manage inventory and much more.

Smart, adaptive roasting

Tailored roasting for every bean using AI technology through first crack detection and adaptive bean temperature profiling.

Elegant design, backed by expertise

Elegant and open design for easy maintenance, upgrades and simplicity of use.

Lifetime support from experienced roasting professionals and step-by-step personal guidance.

L100 Ultra

The L100 Ultra has everything you need to get started roasting, including a tray, hopper, sample tray, and 1.5m ventilation hose. Customers often add the 200 g kit with a larger tray and hopper extension, our Pelicase for easy transport, and a 90-degree elbow if you prefer it over the ventilation hose.

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.

  • Using a built-in microphone and advanced AI technology, the ROEST pinpoints the exact moment first crack begins, distinguishing the sound of individual beans cracking from other noise inside the drum. Every crack is mapped on the roasting curve the batch automatically drops the batch based on the development time or development time ratio set in the profile. 

Advanced sensors
for precision control

ROEST’s cutting-edge sensor technology provides both accurate data and pinpoint control. Fast, responsive temperature probes and sensitive control algorithms ensure that ROEST sample roasters deliver repeatable and reliable results every time. 

  • These systems work together to continuously monitor and adjust key roasting variables—such as temperature, airflow, and drum speed—ensuring every batch follows your profile with exacting accuracy.

Web portal

Get the most out of your roasting session with the ROEST Web Portal, designed to enhance your roasting and provide valuable data about your coffee. All roasting data is stored in the cloud and available from anywhere in the world via your web browser.

    • Follow roasting sessions live

    • Create and modify automated roast profiles

    • Public Profile Library to share profiles with other users

    • Store and compare your roast logs

    • Cupping tool for simple, collaborative scoring

    • Manage green coffee inventory and quality data

Updated touch screen interface

The L100 Ultra features a brand new touchscreen and interface, designed for better readability, more insights and a smoother user experience. Every detail has been refined for a seamless roasting experience.

    • A sleek, modern interface that matches the beauty of our machines

    • At-a-glance roast progress tracking

    • Ability to upload up to 5 profiles

    • Full color display for enhanced readability

    • Dark or light modes for optimal viewing clarity

Reversible drum
for counterflow mode

With the L100 Ultra, you can choose the direction of rotation for the drum. Standard mode enables you to use similar profiles and replicate the roast style of the classic S100/L100+ models.

In Counterflow mode, the drum rotates in the opposite direction, bringing the bean pile directly into the path of the airflow. In this mode, the L100 Ultra operates like a miniature version of our acclaimed P3000 production roaster.

  • Counterflow mode enables radically more efficient transfer of heat from the air to the beans, giving you the choice of roasting much faster, or achieving similar roast times at much lower temperatures. The result is roast profiles that are faster, more energy-efficient, and gentler on the beans.

Roasting profiles

Create new profiles based on air temperature, bean temperature, inlet temperature or power profiles. Or our web portal provides a library where you can share roast profiles and find existing ones. Get connected with our ROEST community and learn from each other by sharing profiles and experiences.

A few profiles created by other professionals you can find in our portal:

Not sure which ROEST is for you?

Every coffee professional deserves their perfect match.

Find the right roaster for you

Premium L100 Ultra

Our top model for the coffee perfectionist with ultra control, quality and flexibility.

50-200g
Capacity

100/230V

Wood/black aluminum
Design

Web portal
Roast profile library

6 temp sensors
Between-batch protocol
First crack detection
Window LED light
Cooling tray warning
15 × 200 g batches / hour
Pressure sensor
Drum counterflow mode
New touchscreen interface
WiFi 5 GHz

Professional L100 Plus

Our most awarded model is optimized for quality control and green coffee buying decisions.

50-200g
Capacity

100/230V

Wood/black aluminum
Design

Web portal
Roast profile library

5 temp sensors
Between-batch protocol
First crack detection
Window LED light
Cooling tray warning
>10 × 100 g batches / hour
—
—
—
—

Starter S100

Great for your first sample roaster and learning more about roasting and profiling.

50-200g
Capacity

100/230V

Wood
Design

Web portal
Roast profile library

3 temp sensors
Between-batch protocol (limited)
—
—
—
—
—
—
—

Sample roasters start at €4,990

Elevate your coffee experience—find your match today!