Rubasse Technology

We are constantly investigating the best solutions that makes your roasting more comfortable, scientific, efficient and productive. We achieved these in various ways - developing unique heating source, integrating automatic systems, improving performance and providing a better, smarter and more sustainable solutions for you.

Fully-Automatic Shop Roasters

Auto Preheat, Auto Charge, Auto Profile Roasting, Auto Discharge , Auto Cooling and  Auto...

Complete Preheat within 5 mins

All Rubasse roasters are equipped with the auto preheating system. After finishing a batch, the roaster will reset the thermal energy from the last batch to the start of the next batch, which further creates consistency between batch-to-batch. These help users achieve numerous consecutive batches with perfect consistency.

Auto Roasting

The world's first roasters are equipped with fully-auto mechanisms, including: auto charge, auto roast, auto discharge, auto cooling & stirring and …etc.

Step 1. Finish preheating and auto charge.

Step 2: Auto Pilot roasting system. Controlled by rubasse algorithm

Step 3: Finish roasting and auto discharge

Step 4: Finish cooling and auto beans out.

Fully-automatic Feature Intro

 

 

Autopilot Profile Replication

Help achieving batch-to-batch coffee consistency by Rubasse Backtracking Algorithm

Rubasse PID Backtracking Algorithm

  • Rubasse Heating compensation, airflow compensation. These can perfectly track bean temperature and airflow of the roasting profile.

  • Create your roasting profile and enjoy auto roasting, where duplicating your desired coffee flavor.

Near Infrared Roasting

By utilizing NIR halogen, the thermal energy can efficiently penetrate coffee beans, which can make flavour more clean and vibrant.

Why do we apply Near Infrared?

 

Advantages of using an electric roaster include: zero emission, consistency in every roast, no required permits needed and …etc.

Compared to gas heating, electric heating is vastly more energy-efficient than gas. Rubasse heating system has features of responsive and linear control over the heat supply. By utilizing NIR (Near Infrared) halogen, the thermal energy can efficiently penetrate coffee beans, which can make flavour more clean and vibrant. 

The NIR Halogen We utilize:

  • Direct heat up the Coffee beansThe penetration depth of near infrared energy into grains can reach from 0.5cm to 1cm, which can evenly roast coffee beans

  • Transient temperature can reach up from 1800℃ to 2200 ℃.  If the lamp with the same length or surface area, the power of “short-wave infrared lamps” can be emitted by a hundred times or even thousands of times higher than that of “far-infrared emitting device”. Therefore, no matter for heating the drum or the beans, the so-called FIR roasters have an energy limit.

  • Linear control over heat supply: Responsive heating control without power loss

Touching-screen and Rubasse Profiler

Touch screen and auto recording on Beans temperature, Drum temperature, Moisture,and...

All Rubasse roasters are equipped with a touch panel where shows all roasting parameters and both roasting profile & real-time profile. This allows users to enjoy the process of creating unique coffee flavour.

The profile will record: 

  • Beans Temperature, Rate of Rise (RoR), Airflow Thermometer, Drum Thermometer. Moisture Amount, Differential Pressure
  • Exhaust, Heating Power, Drum Rotation
  • Turning point, First Crack, Second Crack, Target Temperature and Roasting Time
Convection System

Linear control of your exhaust & Chaff collection

Convection System

The cold airflow will be heated up by passing through the NIR halogen; thus the convection is formed.

Brushless DC Electric Motor- Linear Control of your Airflow

The airflow of coffee roasting have an impact on flavour; therefore, the more stable airflow control will profoundly enhance consistency.

Linear correspondence between exhaust (%) and Airflow volume (m³/hr)

 

Correspondence between Airflow and Differential Pressure (Pa)


Cyclone Chaff Collector

One of the key factors to continuous roasting is having a good “dust collecting” system. All Rubasse roasters are equipped with cyclone dust collector where separates the gas and silverskin. In order to avoid silverskin discharging along with exhaust and making a mess, the post-treatment of silverskin before discharging is also a very important step of roasting.

 

Drum Design

Double Thin Stainless Drum with DC Reversible Motor

Responsive Thin Stainless Drum

We apply SAE 304 stainless steel (food level), offers the most responsive temperature control without any heat lag when you make an adjustment to your heat setting. 

Rate of Rise can reach 36°C/Min and down to 10°C/Min in a minute

Drum with only 0.8mm thickness

Double Drum, The Best Thermal Insulation

We apply design of double drum with the feature of Near Infrared Centered Heating. This inhibits the transfer of heat from the drum to the environment and maximizes energy savings. 

When the drum reach to 200°C, the roaster's surface is only 40°C without influencing the environment temperature.

Double Drum

Exclusive Bidirectional Drum Rotation

We focus on roasters' heat efficiency improvements, and we develop the bidirectional drum rotation. During roasting, the drum will rotate counterclockwise and push coffee beans inward the drum. This is to improve heat efficiency; when discharging, the drum will rotate clockwise and push coffee beans outward to the cooling tray.

Sensors and Data Collection

Real-time data collecting system: Beans Temp, Airflow Temp, Drum Temp, Pressure, and ...etc.

Type K Bean Probe 

Measure the Surface Temperature of Coffee Beans

We utilize the customized type K thermocouple, which has the tightest accuracy of all the base metal thermocouples at ±1C or ±0.75%. Such a probe fully bedding in the beans can have accurate measurement of bean temperature. Therefore, the lowest roasting capacity of Rubasse 3kg roaster can reach only 200g. That is, not only can the roaster do mass production but sample roasting.

Moisture Dectector- Reveal the Moisture Content of Beans

According to Scott Rao (2014), "Roasting is a complex process in which development and moisture loss, among other changes, occur continuously throughout a batch" (p.31)

Rubasse develops the exclusive moisture detector to measure the moisture of roasting exhaust and record it in a roasting profile. This will help roasters know the real-time beans dehydration.

Advanced Safety for Users

Two levels of its safety features designed to provide you an comfortable roasting conditions

Advanced Safety for Rubasse Users
Advanced Safety for Rubasse Users
Two levels of its safety features designed to provide you an comfortable roasting conditions, and prevent users from gas explosion and carbon monoxide poisoning. These new features included overheating protection, which the roasters will power-off automatically when overheating, and Low waste-heat technology allows you to roast more comfortable in high temperature environments.

 


Two levels of its safety features designed to provide you an comfortable roasting conditions,
and prevent users from gas explosion and carbon monoxide poisoning.no gas coffee roaster
These new features included overheating protection, which the roasters will power-off automatically  the roasters will power-off automatically when overheatingand

 alarm automatically when overheating,
and Low waste-heat technology allows you to roast more comfortable
in high temperature environments.

Friendly Environment and Saving

Friendly Environment, Energy Saving, Costs Saving


Energy Saving, Friendly Environment, Costs Saving


Friendly Environment
Energy SavingEnergy Saving
Costs Saving