Rösten mit dem Kaffelogic Nano 7e

Kaffelogic Nano 7e ist eine sehr einfach zu bedienende Kaffeeröstmaschine, die es dank der kleinen Mengen und der feinen Einstellmöglichkeiten erlaubt, zu experimentieren und so die perfekte Röstung für den eigenen Geschmack zu finden. Hier meine Tipps dazu.

Weiterlesen

Rösten mit dem Kaffelogic Nano 7e

Kaffelogic Nano 7e ist eine sehr einfach zu bedienende Kaffeeröstmaschine, die es dank der kleinen Mengen und der feinen Einstellmöglichkeiten erlaubt, zu experimentieren und so die perfekte Röstung für den eigenen Geschmack zu finden. Hier meine Tipps dazu.

Weiterlesen

Einfach zum perfekten Kaffee

Rösten mit dem Kaffelogic Nano 7e funktioniert sehr einfach. Die Maschine wird mit einigen vorgefertigten Profilen geliefert, mit denen man ohne Vorkenntnisse einen guten Kaffee rösten kann. Jedes Röstprofil kann in 60 Stufen von sehr hell bis sehr dunkel eingestellt werden. Du musst also nur folgendes tun:

Simply to the
perfect coffee

Roasting with the Kaffelogic Nano 7e is very easy. The machine comes with some pre-set profiles that allow you to roast good coffee without prior knowledge. Each roasting profile can be adjusted in 60 steps from very light to very dark. So, all you have to do is:

What matters when roasting

Worauf es ankommt 
beim Rösten

Roasting coffee is often portrayed as very complicated to the outside world, and those searching for information on the internet are at best overwhelmed.

 

The fact is, however, that there are some (obvious and unspectacular) factors in coffee roasting that have such a clear impact on the taste that everyone can taste it. And there are many factors that even very experienced roasters can hardly distinguish in blind tastings - yet these hardly relevant factors are often emphasized. Don't let yourself be confused by this, as the only thing that matters is that the coffee tastes good.

 

And here we come to one last important preliminary remark - taste preferences vary extremely from person to person, so you should really pay attention to your personal sensory perception and focus on what tastes good to YOU.

Kaffelogic Nano 7e home roaster – precise sample roasting
  • Coffee bean selection:
    The choice of the right coffee beans has the most significant impact on the coffee's taste. Try different coffees here, paying attention to acidity, sweetness, aroma, mouthfeel, aftertaste, etc.
  • Roast colour / Roast level selection:
    Scientific studies show that roast colour influences about 80% of the taste differences caused by roasting. So, try out different roast colours / roast levels. It's easy with the Nano 7.
  • Roasting time / Development phase:
    After the roast colour, it is mainly the roasting time that influences the taste, specifically the time in the development phase (from First Crack to the end). After the first two points, when working on roast profiles, focus mainly on these two factors.

 

  • Choice of green coffee:
    The choice of suitable green coffee has the most significant influence on the taste of the coffee. Try different coffees here, paying attention to acidity, sweetness, aroma, mouthfeel, aftertaste.

  • Choice of roast colour / roast degree:
    Scientific studies show that the roast colour influences about 80% of the taste differences caused by roasting. So, try out different roast colours / roast degrees. It's easy with the Nano 7.

  • Roasting time / development phase:
    After the roast colour, it is mainly the roasting time that influences the taste, namely the time in the development phase (from first crack to the end). After the first two points, when working on roast profiles, one should focus mainly on these two factors. 

Welches Röstprofil für welchen Kaffee

Which Roast Profile for Which Coffee

Den grössten Einfluss auf die Wahl des Röstprofils hat die Dichte des verwendeten Rohkaffees.

 

Kaffelogic versucht dies zu berücksichtigen, indem die Profile nach der Anbauhöhe des Kaffees sortiert werden. Die Anbauhöhe ist aber nur einer der Faktoren, die die Dichte beeinflussen, daher würde ich Dir empfehlen, in Zukunft die Dichte der Kaffees zu messen und das Profil entsprechend auszuwählen. Bei unseren Rohkaffees findest Du die Dichte direkt in der Beschreibung.

0 - 1200m REST

Coffees with density up to 700g / Lt

1200 - 1500m REST

Coffees with density 700 to 725 g / Lt

1500 - 2000m REST

Coffees with density 725 to 750 g/L

2000 - 2700m REST

Coffees with density from 750 g / Lt

Cupping, Robusta, Decaf, and Super Dark

are self-explanatory profiles

RTD Profile

See more information below

Welches Röstlevel

Which Roast Level

As mentioned earlier, the colour of the roasted coffee has a significant impact on the taste of the coffee. Therefore, it is important to find the roast colour that best suits your taste. Kaffelogic makes this easy with the so-called roast levels.

 

Kaffelogic roasts the coffee along a predefined curve. The roast level is the point on the curve where the roasting ends. It is a function of the time and energy that has flowed into the bean, directly correlating with the colour of the roasted coffee. Therefore, it is a very simple parameter to experiment with different roast levels or roast colours.

Kaffelogic Nano 7e home roaster – precise sample roasting

Bracketing

Bracketing

Als die Fotografie noch analog war, benutzte man die sogenannte Bracketing-Technik - ein Bild wurde dreimal aufgenommen: einmal dunkler, einmal mittel und einmal heller. Dann hat man die Bilder verglichen und von dem Bild, das am schönsten war, noch einmal so eine Serie mit feineren Abstufungen gemacht.

Das empfehle ich auch für die Röstung mit dem Nano 7 z.B.


 

1. 3 Röstungen eines Kaffees mit gleichem Profil:
Level 2 / Level 3 / Level 4

 

2. Angenommen, Level 2 schmeckt Dir am besten, ist aber noch nicht perfekt, dann mache zwei weitere Röstungen mit dem gleichen Profil und vergleiche:

Level 1.8 / Level 2 / Level 2.2.

 

3. So lange, bis Du die für Dich perfekte Einstellung gefunden hast.

Light Roasts

As mentioned above, the roasting time has a significant impact on the taste. The profiles provided by Kaffelogic are generally quite long for the machine's spectrum, ranging from approximately 9:30 to 12:30 minutes each. These profiles are very suitable for medium and dark roast levels and are enjoyed by most people.


However, if you prefer light filter roasts, these profiles may be too long, and you should roast a bit faster. For example, here is the roasting profile of World Brewers Cup Champion Carlos Medina - his roast only took 7:30 minutes:
https://kaffelogic.com/competitors-page/wbrc-chile-2023


For light roasts, you have the following options:

  • Choose one of the standard profiles designed for very dense beans and select a light roast level.
  • Choose the cupping profile.
  • Edit a profile in Kaffelogic Studio, making it shorter with a steeper curve.
  • Here you will also find a collection of roasting profiles that I like to use for lighter roasts: Kaffelogic Profiles

Ready to Drink Profile

It turns out that with pure fluid bed / hot air roasters like the Kaffelogic Nano 7, the coffees degas and are ready to drink significantly faster. Why exactly is not yet clear. One hypothesis is that the structure of the bean closes on the outside when the beans meet a preheated roasting drum, and therefore less CO2 can diffuse out of the bean in the drum roaster during the roasting process, resulting in a higher CO2 content after roasting. However, since the Kaffelogic Nano 7 builds up heat at room temperature, more CO2 can escape from the bean during the heat build-up, resulting in less CO2 in the roasted bean in the end.

In any case, the Kaffelogic team was able to develop roasting profiles that taste significantly better directly from the roaster than in conventional roasting and also provides these roasting profiles with the designation RTD, meaning:

Coffee bean cup mobile – product image

Ready to Drink Profile


It turns out that with pure fluid bed / hot air roasters like the Kaffelogic Nano 7, the coffees degas and mature much faster, ready to drink. The exact reason is not yet clear. One hypothesis is that the structure of the bean closes on the outside when the beans meet a preheated roasting drum, which means that less CO2 can diffuse from the bean in the drum roaster during the roasting process, resulting in a higher CO2 content after roasting. However, since the Kaffelogic Nano 7 builds up heat at room temperature, more CO2 can escape from the bean during the heat build-up, resulting in less CO2 in the roasted bean in the end.

In any case, the Kaffelogic team was able to develop roasting profiles that taste significantly better directly from the roaster than in conventional roasting and also provides these roasting profiles with the designation RTD, which stands for:

Ich verwende diese Profile dann, wenn ich keinen Kaffee mehr zuhause habe und bin immer wieder überrascht, wie gut die RTD Röstung funktioniert. Gib dem gerne mal eine Chance, ich bin gespannt, wie es Dir schmeckt.

Rohkaffee zum selber rösten

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Mehr Fragen? Wir sind für Dich da.

Hast Du weitere Fragen zu Kaffee, zu Rösten oder zu unserem Sortiment? Rufe mich jederzeit gerne an oder schreib mir eine E-Mail. Als Heimröster, SCA ausgebildeter Röster und Mitglied der Roasters Guild of Europe kenne ich die Geräte und Kaffees aus meiner täglichen Arbeit:

Telefon +41 76 261 97 17 oder E-Mail ingo[at]roastrebels.com

Ingo Roast Rebels

Mehr Fragen?
Wir sind für Dich da.

Hast Du weitere Fragen zu Kaffee, zu Rösten oder zu unserem Sortiment? Rufe mich jederzeit gerne an oder schreib mir eine E-Mail. Als Heimröster, SCA ausgebildeter Röster und Mitglied der Roasters Guild of Europe kenne ich die Geräte und Kaffees aus meiner täglichen Arbeit:

Telefon +41 76 261 97 17 oder E-Mail ingo[at]roastrebels.com

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