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Krausen - The Definition of Krausen

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Krausen
Chiliberto/Flickr/CC BY 2.0
Definition:

Noun - The foamy, rocky head of yeast that forms at the peak of fermentation.

Verb - To introduce measured amounts of actively fermenting beer that has reached the most active point of fermentation to more thoroughly fermented beer. This is usually done to condition or naturally carbonate the beer.

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