This is how you do it yourself at home

The secret of success: experience

Roasted coffee beans develop more than a thousand aromatic compounds when roasted, which combine to give the typical coffee taste. A roast master uses his knowledge and experience to control this aroma formation in a targeted manner. Nobody at home can score points with such a wealth of experience, but creating your own coffee variants “by chance” remains exciting. And as long as the cup tastes good, everything is fine.

An infrared thermometer is essential

The temperature plays the main role in the taste when roasting coffee. It should be in the range of 180 to 230 degrees Celsius. It should also be kept constant during the ten-minute roasting period. An infrared thermometer is a helpful tool and should not be missing when roasting at home.

This is how you can roast raw coffee beans

in a pan
in the oven
with heat gun in a heatproof bowl
in a special coffee roaster

Tips

You can get raw coffee beans in online shops or well-stocked supermarkets and coffee shops.

Roast the coffee beans in the pan

200 degrees Celsius are required
Maintain temperature continuously with the help of the thermometer
Stir the coffee beans constantly
The roasting process ends when the beans are dark brown

Roasting in the open pan can be a bit dangerous if individual beans burst. Wearing safety glasses is not a bad idea.

Tips

Do not judge the roasting success too early. The development of the aromas continues even after the roasting process has ended and only reaches its optimum after about 24 hours.

Roast the green coffee in the oven

Wash the beans before putting them in the oven
Preheat the oven to 200 degrees
Air circulation is recommended
Spread the coffee beans thinly on a baking sheet
Roast in the oven for 10 to 20 minutes

Tips

Do not open the oven door during the roasting process; you must also refrain from stirring! This would cause the temperature to drop too much.

Heat gun as a roasting tool

Small amounts of beans can be roasted with a heat gun. You absolutely need a heat-resistant bowl as a container for the beans. Your eyes must be protected from so-called silver skins flying around with protective goggles.

Put the beans in the ovenproof bowl
The bread maker is also suitable as a container
find out the correct distance of the gun by trial and error
if it is too small, the beans are only "baked"
if it is too close, the aroma is destroyed
Roast for about 12 to 15 minutes

Tips

If you have a popcorn machine at home, you can try roasting it in it - without the heat gun.

Roasting machines for private coffee

A home roaster can be bought for as little as 200 euros, but there are also much more expensive ones. But the devices can also offer some useful functions:

several adjustable roast levels
for all imaginable coffee specialties
Roasting up to 300 grams of green coffee
Roasting takes place automatically
Devices are easy to clean
no risk of injury from bean parts flying around

durability

Freshly roasted coffee is not intended for storage, as it would steadily lose its aroma. It is better to roast smaller quantities of beans at once. If it has to be stored, please only after it has cooled down. Airtight, dark and cool. Use up as soon as possible.

Conclusion for quick readers

Temperature: Constantly between 180 and 230 degrees Celsius; measure with infrared thermometer
Pan: heat to 200 degrees; Put beans in; toast, stirring constantly
Oven: preheat to 200 degrees fan-assisted; Wash beans spread on baking tray; Roast for 10-20 minutes
Caution: Do not open the oven door in between so that the temperature does not drop
Heat gun: put beans in ovenproof bowl. Roast for 12 to 15 minutes at a suitable distance
Tip: A popcorn maker can also be converted into a coffee roaster
Home roaster: available from 200 euros; automatic roasting process; Degree of roasting adjustable; safe to use
Use: 24 hours after roasting, the aroma is optimally developed; Consume beans quickly
Shelf life: Store cooled beans as short as possible; packed airtight, dark and cool