When Coffee Meets Wine
The worlds of coffee and wine have long followed similar paths. Vintners have been experimenting with fermentation for hundreds of years, seeking ways to bring out a full range of aromas. One such idea was the use of mosto – natural juice from freshly crushed grapes, rich in sugars, acids, and microorganisms. It's no surprise that coffee producers, observing this practice, decided to adapt it to their own craft.
What exactly is mosto in coffee?
In the context of coffee, mosto is the juice from coffee cherries (mucilage + pulp), obtained during processing. Instead of discarding it – as often happens with traditional methods – farmers reuse it in the fermentation process. This natural cocktail, full of sugars and yeasts, becomes an excellent catalyst that intensifies fermentation and allows completely new flavor notes to emerge.
What methods is mosto combined with?
Although mosto sounds like a separate method, it is in fact more of a supporting technique that farmers integrate into various processes. You'll most often find it in anaerobic fermentations – both in classic anaerobic and in carbonic maceration. In these cases, the fermentation juice goes into the tank together with the coffee cherries, acting as a natural catalyst. It accelerates and stabilizes fermentation, making it easier to predict what aromas will ultimately be in the cup.
But mosto can also be found in natural and honey coffees. In such cases, the beans are soaked or poured over with the fermentation juice before the drying stage. This is a more subtle form of using mosto – it adds an extra layer of flavor to the coffee without taking away its typical character. As a result, a natural coffee can be even juicier, and a honey coffee even sweeter.
In other words, the farmer decides in which processing mosto makes the most sense. This means that the same technique can yield completely different results.
How does mosto affect the taste of coffee?
Thanks to the additional dose of sugars and microorganisms, the coffee becomes more complex. Typical effects include:
- more pronounced sweetness (ripe fruit, caramel, honey),
- stronger fruitiness (red berries, grapes, tropical fruits),
- interesting acidity (citrus, wine, sometimes fermented notes).
Some mosto coffees can taste as if a touch of natural fruit juice has been added to the cup – with no additives, just thanks to controlled fermentation. Others, in turn, develop very distinct herbal notes.
Why is it worth trying?
Mosto is proof that coffee is not standing still. Farmers are inspired by wine, science, and culinary arts to create something that seemed impossible just a few years ago. If you want to experience in your cup how much processing affects taste – mosto coffee is an excellent choice. It's an experience that combines classicism and innovation.
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