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Precise Sample Roaster with Calibration Function

 

The Nucleus Link is a highly precise convection roaster. It was specifically developed as a sample roaster - in particular, the device enables consistent roasting regardless of external conditions. This makes it perfect for communication between coffee producers and roasteries, as well as a sample roaster for farm visits.

The device is delivered in a shockproof box along with accessories to determine bean density. It also includes an app that selects the appropriate machine settings based on sea level, bean type, and density.

Due to its easy handling, the device is also suitable for ambitious and quality-oriented home roasters.

competition roasting nucleus link

Happy customers working with Nucleus Link

Become part of the community

referenzen nucleus link

Precise Sample Roaster with Calibration Function

The Nucleus Link is a highly precise convection roaster. It was specifically designed as a sample roaster - in particular, the device enables consistent roasting regardless of external conditions. This makes it perfect for communication between coffee producers and roasteries, as well as for sample roasting during farm visits.
The device comes in a shockproof box and includes accessories to determine bean density. It also includes an app that selects the appropriate machine settings based on altitude, bean type, and density.
Due to its easy handling, the device is also suitable for ambitious and quality-oriented home roasters.
competition roasting nucleus link

Happy Customers
working with Nucleus Link

Become part of the community

referenzen nucleus link mobile

Discover the Nucleus Link

 

  • Easy operation and consistent roasting
  • Time-saving through automated roasting
  • Simple calibration for consistent roasting regardless of sea level and climatic conditions
  • Sturdy case for field use / on coffee farms
  • Over 1'000 high-quality roasting profiles - developed by coffee champions in collaboration with coffee producers
  • Incl. measuring set for coffee density, app, and software with live function
  • Very low maintenance and robust

 

nucleus link bedienung

Discover the Nucleus Link

  • Easy operation and consistent roasting
  • Time-saving through automated roasting
  • Simple calibration for consistent roasts regardless of sea level and climatic conditions
  • Sturdy case for field use / on coffee farms
  • Over 1'000 high-quality roasting profiles - developed by coffee champions in collaboration with coffee producers
  • Incl. measuring set for coffee density, app, and software with live function
  • Very low maintenance and robust
nucleus link bedienung

Everything you need to know

Features, Benefits, Live Roasting

Everything you
need to know

Features, Benefits, Live Roasting

Step-by-Step Guide

Step by Step to the perfect roast

nucleus link befuellt mit kaffeebohnen

Features

 

  • Roasting system: hot air flow (Fluid-Bed)
  • Adjustment options: bean temperature & airflow strength
  • Automation: PID based on a predefined temperature curve
  • Temperature measurement: open bean sensor (naked Thermocouple)
  • Batch size: 50-100g green coffee
  • Roasting time (typical): 10 min. | Cooling time (typical): 4 minutes
  • Roasting profiles: More than 1'000 roasting profiles in 4 categories (Cupping, Filter, Espresso, Omniroast)
  • Density meter and app for determining the suitable profile
  • Unlimited number of custom roasting profiles possible
  • Easy sharing of roasting profiles with other users (e.g. via email, forums,...)
  • Country of production: Handcrafted in New Zealand

Features

  • Roasting System: hot air flow (Fluid-Bed)
  • Adjustment Options: Bean temperature & airflow strength
  • Automation: PID based on a predetermined temperature curve
  • Temperature Measurement: open bean sensor (naked Thermocouple)
  • Batch Size: 50-100g green coffee
  • Roasting Time (typical): 10 min. | Cooling Time (typical): 4 minutes
  • Roast Profiles: More than 1'000 roast profiles in 4 categories (Cupping, Filter, Espresso, Omniroast)
  • Density Meter and App for determining the suitable profile
  • Unlimited number of custom roast profiles possible
  • Easy sharing of roast profiles with other users (e.g. via email, forums,...)
  • Country of Origin: Handcrafted in New Zealand

Software & App

Free software & app with live functions

software-icon

Software: Nucleus Studio

The device can be used with or without the software.

The software offers three possibilities:

1. Real-time recording of the roasting process

2. Analysis and documentation of roasting processes
3. Creation or modification of roasting profiles and parameters

 

roest-siegel

app-icon

App: Nucleus Studio

The app supports in choosing the right settings.

The app offers two options:

1. Determination of calibration according to the current altitude

2. Determination of the roasting profile according to the density and processing of the beans

 

roest-siegel

Technical Data

 
  • Dimensions Base Unit: 125mm x 125mm x 280mm WxDxH
  • Height with Spray Collection Container: 430mm
  • Weight: 4.1 kg
  • Power Supply: 220-240V
  • Power: 1400 W
  • Materials: Housing made of powder-coated steel, plastic fittings made of Nylon PA66, roasting chamber made of aluminium


Note:
Upon request, we can also supply the 110V version if the device is to be taken to countries with a 110V power grid.

nucleus link lieferumfang

Technical Specifications

  • Dimensions Base Unit: 125mm x 125mm x 280mm WxDxH
  • Height with Spray Collection Container: 430mm
  • Weight: 4.1 kg
  • Power Supply: 220-240V
  • Power: 1400 W
  • Materials: Housing made of powder-coated steel, plastic fittings made of Nylon PA66, roasting chamber made of aluminium


Note:
Upon request, we can also supply the 110V version if the device is to be taken to countries with a 110V power grid.

nucleus link lieferumfang
nucleus link case koffer

Scope of delivery

 

  • Nucleus Link coffee roasting machine
  • Chaff collector
  • High-quality shockproof and waterproof case
  • Density measuring container
    (A conventional kitchen scale or coffee scale is also required but not included in the scope of delivery)
  • High-quality dosing cup
  • Coffee bowl
  • Connection cable (USB-C | USB-A)

 

Scope of delivery

  • Nucleus Link Coffee Roaster
  • Chaff collector (Spreu container)
  • High-quality shockproof and waterproof case
  • Density measuring container
    (A conventional kitchen scale or coffee scale is also required but not included in the scope of delivery)
  • High-quality dosing cup
  • Coffee bowl
  • Connection cable (USB-C | USB-A)
nucleus link case

Nucleus Link vs. Kaffelogic Nano 7e

What are the differences between the Nucleus Link and the Kaffelogic Nano 7e?
Here is an overview of the most important differences from our point of view.

Nucleus Link vs.
Kaffelogic Nano 7e

What are the differences between the Nucleus Link and the Kaffelogic Nano 7e?
Here is an overview of the most important differences from our point of view.

  Nucleus Link Kaffelogic Nano 7 e
Heat transfer hot air flow (Fluid-Bed)️ hot air flow (Fluid-Bed)
Capacity 50g - 100g️

90g - 120g

BOOST Kit as accessory with max. 50g - 200g

Temperature
measurement
open bean sensor
(Precise bean temperature measurement)️
open bean sensor
(Precise bean temperature measurement)
Possible
settings
Temperature (beans) & Fan strength️ Temperature (beans) & Fan strength
Settings
on the roaster
More than 1'000 roasting profiles in 4 categories. Equipment for determining bean density and app for determining the suitable roasting profile. Possibility to program and upload additional roasting profiles to the device.️ Selection of 15 pre-programmed roasting profiles and 60 degrees of roast from super light to super dark. Possibility to program and upload additional roasting profiles to the device.
App & Functions Smartphone app with the following functions:
- Determination of the machine's calibration value
- Determination of the suitable profile per bean
No smartphone app
Settings
on PC
Free Nucleus Studio Software (PC, Mac). Precise settings for roasting profiles. Software can be adjusted in detail according to the user's preference (Basic, Advanced, Expert, Engineer). Live recording of the roasting process. Easy sharing of roasting profiles (Files), e.g. via email Free Kaffelogic Studio Software (PC, Mac, Linux). Precise settings for roasting profiles. Software can be adjusted in detail according to the user's preference (Basic, Advanced, Expert, Engineer). Easy sharing of roasting profiles (Files), e.g. via email
Power requirement 1'400W (max.) 1'400W (max.)
Ease of use Fairly simple to use; Coffee density must be determined and the roasting profile selected with the app Very simple to use; Selection of roasting profile according to coffee cultivation altitude
Country of manufacture Handcrafted in New Zealand  Handcrafted in New Zealand
Warranty 2 years 2 years

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delivery
Free Delivery

Within the EU

quick
Fast Delivery

From stock in Germany

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Repairs & Spare Parts

Service Center for Repairs & Spare Parts

guarantee
2 Years Guarantee

For Individuals &  Companies

More Videos

Roasting made easy with Nucleus Link

More Videos

Roasting made easy
with Nucleus Link

High-precision sample roaster with 1,000+ profiles for every bean & roasting style. 50–100g capacity.

Automatic Program: yes
Capacity: up to 100g
Internal bean cooling: yes
PC connection: yes
Performance: 1000 to 1500 watts

11 of 11 reviews

Average rating of 5 out of 5 stars

5 out of 5 stars


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1 review

15 May 2025 15:09

Review with rating of 5 out of 5 stars

Jeder kann mit dem nucleus link guten Kaffee rösten

Wirklich jeder. Er ist einfach zu bedienen (mit der Video Anleitung von Ingo). Ausserdem ist alles sehr intuitiv und wenn man eine Frage hat, gibt es in der App einen KI Assistent der die Frage beantwortet. Die Röstprofile ergeben eine ausgewogene Röstung. Wir sind zufrieden und würden wieder kaufen. Und wenn wir wieder mehr Zeit haben sollten, gibt es ausreichend spielereien darin :)

2 March 2025 00:00

Review with rating of 5 out of 5 stars

Voordeel, dat het product komt

Voordeel, dat het product komt met vele door een specialist opgestelde voorgeprogrammeerde roosterprofielen, waarmee je direct goede resultaten behaald. Nadeel: dat je maar max 100gr per keer kan roosteren. (Maar om eerlijk te zijn is het product niet bedoeld voor grote hoeveelheden), dus denk daarbij wel aan als je dit product wilt aanschaffen.

2 March 2025 00:00

Review with rating of 5 out of 5 stars

Voordeel, dat het product komt...

Voordeel, dat het product komt met vele door een specialist opgestelde voorgeprogrammeerde roosterprofielen, waarmee je direct goede resultaten behaald. Nadeel: dat je maar max 100gr per keer kan roosteren. (Maar om eerlijk te zijn is het product niet bedoeld voor grote hoeveelheden), dus denk daarbij wel aan als je dit product wilt aanschaffen. (Quelle: SHOPVOTE)

15 October 2024 00:00

Review with rating of 5 out of 5 stars

Excellent results so far. Than

Excellent results so far. Thanks RR for fast shipping.

15 October 2024 00:00

Review with rating of 5 out of 5 stars

Excellent results so far....

Excellent results so far. Thanks RR for fast shipping. (Quelle: SHOPVOTE)

16 July 2024 00:00

Review with rating of 5 out of 5 stars

Hat alles super geklappt, der

Hat alles super geklappt, der Röster ist sehr leicht zu bedienen.

16 July 2024 00:00

Review with rating of 5 out of 5 stars

Hat alles super geklappt, der...

Hat alles super geklappt, der Röster ist sehr leicht zu bedienen. (Quelle: SHOPVOTE)

19 May 2024 00:00

Review with rating of 5 out of 5 stars

No comment

No comment

25 January 2024 10:28

Review with rating of 5 out of 5 stars

Great sample roaster, great aftersales service

We decided to take a chance on importing a Nucleus Link to the UK with Roast Rebels and we're so glad we did. Delivery to the UK was quick and uncomplicated, we had to pay duties but the Link was released quickly and has been a cornerstone of the roastery ever since. The support with getting started from Roast Rebels has been faultless. Now, with the new profile packs, developing a production coffee is simple and dialling in on the ideal profile is quick. We wouldn't be without it now and couldn't be happier.

11 October 2023 00:00

Review with rating of 5 out of 5 stars

Bewertung ohne

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The payment is uncomplicated in our store! You can find detailed info about payment and shipping here. We offer the following payment methods:

Prepayment / bank transfer Mastercard Visa Google Pay Apple Pay Klarna iDEAL Bancontact eps

We ship orders from a warehouse in Germany via DHL Paket (for shipments within Germany) or DHL International Premium (for shipments to all other countries).

DHL Paket / DHL International Premium

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