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Results tagged with alpha-acids
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user 14491
Alpha acids (α acids) are a class of chemical compounds found in the resin glands of the flowers of the hop plant and are the main source of hop's bitterness contribution to beer. The Alpha Acids are isomerized during the boil, and it is the iso-alpha acids that contribute bitterness to the final product.
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Why are AAU not specified for dry hopping?
Dry-hopping does not impart bitterness.
The bitterness in the beer originates in the isomerization of hop alpha acids in the heat of the boil.
Since dry hopping is done cold, no AAU units of bitternes …
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