The coffee magazine
The roast book for coffee people
From green coffee to crema: guides, origins, roasting, coffee makers and tools that run in your browser.
Signature tool
The roast level explorer
Slide the bean through the roast. Colour, temperature, aromas and the matching brewing method change with every degree.
Five chapters
From green coffee to the cup
10 articles
Guides
Good coffee is no accident. It is a ratio of bean, water, grind and time. Here is how to get it right.
Discover
10 articles
Origins
The coffee belt lies between the tropics of Cancer and Capricorn. Every origin tastes different, and the map shows you why.
Discover
5 articles
Roasting
Green coffee tastes of grass and hay. Only the roast turns it into the bean you know. Twelve minutes that decide everything.
Discover
8 articles
Coffee makers
There is no best coffee machine. There is the one that fits your morning. Eight routes to the cup, without the sales talk.
Discover
4 articles
Roasters
Anyone who has roasted once buys coffee differently. Here is which machine is good for what and what starting out really costs.
DiscoverNew in the guides
Written most recently
Microfoam
Milk foam: velvet instead of bubble bath
Milk foam with the steam wand: stretching phase, rolling phase, 60 to 65 degrees, milk with at least 3.5 percent fat.
Grinder
Grind size guide: from espresso to cold brew
The right grind for every method: espresso, moka pot, AeroPress, pour over, drip machine, french press and cold brew.
Filter coffee
Pour over: the hand brew step by step
Pour over with a hand filter: 15 g of coffee to 250 g of water, a bloom, three pours and a total time of three minutes.
The coffee belt
Ten origins on one map
The coffee of the world grows between the tropics. Tap a dot and see how that origin tastes.
The quiz
Espresso purist or cold brew free spirit?
Eight questions, six types, one result with an image to share on WhatsApp, Instagram and the rest.
Start the quizTools
Let it calculate instead of guessing
Brew calculator
Enter what you want to brew and how much of it. The calculator gives you coffee, water, grind, temperature and time.
OpenCaffeine calculator
Enter the drinks of your day. The calculator shows the amount, the curve in your blood and when you should stop.
OpenAroma wheel
Click your way through the aroma families. Every note explains how it tastes and where it comes from.
OpenRoast level explorer
Slide the bean through the roast and see what changes at every degree.
OpenBrewer finder
Five questions, three recommendations. No brands, no affiliate links.
Open