Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options questions only not deleted user 83

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.

7 votes
2 answers
1k views

What are alpha acids?

Can someone explain what exactly an alpha acid is and why should I care about the alpha acid "rating" on the hops I use.
Richard Stelling's user avatar