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Is using a large amount of low alpha hops for bittering a bad idea?

I'm going to brew a Kölsch soon with about 25 IBUs. I was planning on using Hallertau Hersbrucker for bittering. However, after I bought the hops I noticed they only have 2.3% alpha acid content. ...
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4answers
8k views

Alpha acids vs. beta acids in aging?

Can someone explain the difference in hop bitterness between alpha acids in my wort vs. beta acids bittering during aging? And is it predictable enough to plan for in recipe formulation?