Roasting with the Gene (CBR-101) Home Roaster

Roasting with the Gene Home Roaster is easy. The challenge (and therefore the fun) begins when you start to find the best roasting profiles for the Gene Roaster and roast the coffee just the way you like it. Below are two suggestions to get you started, as well as a selection of possible Gene roasting profiles for different coffee beans.

Roasting with the Gene (CBR-101) Home Roaster

Roasting with the Gene Home Roaster is easy. The challenge (and therefore the fun) begins when you start to find the best roasting profiles for the Gene Roaster and roast the coffee just the way you like it. Below you will find two suggestions to get you started, as well as a selection of possible Gene roasting profiles for different coffee beans.

Standard Roasting with Gene Café CBR-101

1. Insert the empty glass bulb, press the blue on-off button, set a time of approx. 6 minutes and a temperature of 200°C. Let the roaster heat up until the temperature reaches approx. 200°C.

2. Press the red button until an "E" appears on the display. Remove the bulb, preferably with a cloth or oven glove. Caution, it is extremely hot.

3. Fill 200 to 250 grams of green coffee beans into the container. Do not exceed the marking. Secure tightly, close the lid, and set a roasting time of 19 minutes with the blue button, set a temperature of 240°C with the red button, and start the roasting process with the red button.

4. The coffee is now loaded with heat, dried, and then taken directly into the roasting process. You will see the current and final temperature alternately blinking. You can adjust the temperature and time during roasting. However, we recommend not interfering during the first roast, but simply observing what happens.

5. Sometimes it is difficult to hear the cracking in the Gene roaster. However, you will notice that the beans significantly increase in size in a short time, many husks loosen, a distinct roasting smell is noticeable, and you can observe the colour of the coffee through the large glass.

6. After the first crack, wait until you have reached the desired roast level.

7. Once the roasting is finished, remove the bulb with an oven glove, pour the beans into a sieve, and turn them with a wooden spoon or similar to cool the coffee.

Try how the coffee tastes at the same roast level when you increase the temperature to 250°C and roast for a shorter time.

P.S. Although the Gene roaster has a built-in cooling function, it is unfortunately not very good, and the coffee cools for too long, becoming baked and losing flavour. After roasting, follow the steps above and cool the coffee, for example, in a spaghetti strainer with a fan.

Roasting profiles for various types of beans

Roasting profiles for different coffee beans

Gene Roasting for Santos Beans

Ideal for example for Brazil Catuai & Bourbon Santos, Organic Brazil natural Santos, Organic Brazil Red Iapar

Bean Quantity: 230 grams
Preheat: 175°C
Target Temperature 1: 243°C until first crack
Target Temperature 2: 233°C until the end
Roast Development %: 20%

Gene Roasting for Washed Highland Beans from Africa

Ideal for example for Organic Ethiopia Sidamo, Washed Yirgacheffe, Kenya Washed SL-28

Bean Quantity: 250 grams
Preheating: 200°C
Target Temperature 1: 150°C for 6 minutes
Target Temperature 2: 245°C until First Crack
Target Temperature 3: 225°C until the end
Roast Development %: 16-20%

Gene Roasting for natural & anaerobic highland beans

Ideal for example for organic Ethiopia natural Yirgacheffe, Guatemala anaerobic

Bean quantity: 250 grams
Preheating: 200°C
Target temperature 1: 150°C for 6 minutes
Target temperature 2: 240°C until first crack
Target temperature 3: 220°C until the end
Roast Development %: 16-19%

Gene Roasting for SHB Beans from South & Central America

Ideal for example for Organic Guatemala Delicia SHB, Organic Honduras Copán, Mexico Chiapas SHG

Bean quantity: 250 grams
Preheat: 180°C
Target temperature 1: 245°C until first crack +45 seconds
Target temperature 2: 225°C until the end
Roast Development %: 19%

Gene Roasting for Coffee from Indonesia

Ideal for example for Indonesia Sumatra Lintong

Amount of beans: 230 grams
Preheating: 200°C
Target temperature 1: 165°C, maintain temperature for 1 minute upon reaching
Target temperature 2: 245°C until the first crack
Target temperature 3: 220°C until the end
Roast Development %: 19-24%

Gene Roasting for Highland Beans from South America

Ideal for example for Colombia Maragogype, Organic Peru Cajamarca

Bean quantity: 250 grams
Preheating: 200°C
Target temperature 1: 150°C for 6 minutes
Target temperature 2: 245°C until First Crack
Target temperature 3: 225°C until the end
Roast Development %: 16-20%

Gene Roasting for Robusta (Canephora) Beans

Gene Roasting for Robusta (Canephora) Beans c

Bean Quantity: 230 grams
Preheating: 210°C
Target Temperature 1: 248°C until first crack
Target Temperature 2: 233°C until the end
Roast Development %: 21-25%

Gene Roasting for Monsooned Malabar Beans

Ideal for example for India Monsooned Malabar, Organic India Monsooned Malabar AA

Bean Quantity: 200 grams
Preheating: 200°C
Target Temperature 1: 237°C until first crack
Target Temperature 2: 227°C until the end
Roast Development %: 21-25% 19%