Ask Mr. Wizard Choosing bittering hops? Q When substituting bittering hops, how important are the hop characteristics? It would seem that the boiling of the hops destroys most everything except the desired bitterness. Also, the hop substitution guide lists Northern Brewer as a substitute for Perle but not the reverse. Can you clarify this for me? A In my experience, variety does matter whether you are substituting hops in a recipe primarily for bittering or for aroma. The compounds in hops that contribute bitterness to beer are the alpha acids, with humulone, adhumulone and cohumulone being the most significant in terms of amount. Hop chemists use several methods to separate the various compounds in hops and brewing scientists have tried to figure out the effect these compounds have on finished beer flavor. Read more |
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