International Bitterness Unit
A unit used by brewers in estimating the bitterness (in moderation, a valued
quality) of beer based on the quantity and quality of hops used. Symbol, IBU.
where
- H is the concentration of hops in grams per liter
- A is the concentration of alpha acids in the hops, expressed as a percentage.
Alpha acids are humulone, cohumulone and adhumulone.
- B is the concentration of beta acids in the hops, expressed as a percentage.
Anyone who knows what the beta acids are, please let us know.
Copyright © 2003 Sizes, Inc. All rights reserved.
Last revised: 10 March 2003.
