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Dry fermentation

Fermenting pulped coffee without water in the tank. More intense than wet fermentation, and less forgiving.

Dry fermentation ferments pulped coffee without adding water to the tank — the beans sit in their own mucilage.

Versus wet fermentation

Wet fermentation submerges the coffee, which moderates temperature and dilutes the products of fermentation.

Dry fermentation concentrates everything. Microbial activity is more intense, temperature rises faster, and the flavour contribution is greater.

The result

More pronounced fruit and complexity than a wet-fermented washed coffee, while remaining cleaner than a natural.

The risk

Less margin. Without water to buffer it, an unmonitored tank can overheat and over-ferment quickly, producing sour, vinegary coffee.

Producers running dry fermentation successfully monitor temperature closely and stop on measurement rather than on the clock.

Where it is used

Kenya traditionally, and increasingly by quality-focused producers elsewhere experimenting with fermentation as a flavour variable.

Brewing it

Filter, light roast, a clean brewer.

What you need to make it

The equipment this actually requires — not a shopping list, the shortest route to doing it properly.

  • The reference pour-over Manual brewers

    Hario V60 02 Ceramic

    60° cone · spiral ribs · 1–4 cups

    The most transparent cup you can brew for twenty euros, and the least forgiving. Ceramic holds heat where plastic does not — and the open bottom means your pour, not the dripper, decides the coffee.

    Best for: Someone who wants to taste what a single-origin coffee is actually doing.

    8.2/10

    ≈ $25 / £20 / 22 €

  • Best filter grinder Grinders

    Fellow Ode Brew Grinder Gen 2

    64 mm flat burr · filter only · single dose

    64 mm flat burrs, near-zero retention and a footprint the size of a mug, built for filter and honest about not doing espresso. For pour-over it is the clearest grind you can buy at this price.

    Best for: V60, Chemex, AeroPress and batch brewing, where clarity is the whole point.

    8.7/10

    ≈ $345 / £275 / 300 €

  • Best pour control Kettles

    Fellow Stagg EKG Pro

    0.9 L · ±1 °C hold · counterbalanced gooseneck

    The best-pouring kettle sold, and the hold function matters more than the thermometer. Expensive for boiling water — but if you brew pour-over daily, it is the accessory that most improves the cup.

    Best for: Daily pour-over, where flow rate is the variable you are trying to control.

    8.6/10

    ≈ $195 / £165 / 180 €