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Why do we wet paper filters? (lemm.ee)

submitted 11 months ago by [email protected] to c/coffee

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I've seen the pourover advice given and referenced unquestioningly: always pre-wet your paper filter. But why? What is the benefit of doing this step?

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[–] [email protected] 4 points 11 months ago (1 children)

It's exclusively to remove paper flavor. There are microparticles stuck to the filters you don't want in your drink.

Channeling on the other hand happens when you have irregular grind size and distribution in your grounds. Stirring them pre-pour and pouring gently in consistent motions helps with that, as does a proper blooming phase. Wetting the paper has no effect there.

[–] [email protected] 3 points 11 months ago

Ah, well, interesting. Thanks for clarifying.