IS THE RESIN OF HOPS WHICH ARE THE BITTER COMPONENT OF HOP FLAVOR. IT IS MEASURED AS A PERCENTAGE BY WEIGHT.
These come from the soft resin of the hop flower. They are made of humulone, ad-humulone and co-humulone.
A resin contained in the hop plant that is responsible for the bitterness in beer. When purchasing hops, the alpha acid content of the hops will be given as a percentage and printed on the package cover.
The bittering property of the hop flower. Measured as a percentage of the total weight of the hop cone.
Bittering acid in hop flowers.
A sticky, bitter resin found in hops, which imparts bitterness to the finished beer.
The soft, bitter hop resin that is responsible for the bitterness of beer. Measured as a percentage of the total weight of the hop cone.
The main component of the bittering agent in the hop flower.
The bitter component of hops that can be made soluble when isomerized by boiling. Given in percentage of alpha acid, which may be used to estimate the amount of bitterness in beer. See HBU and IBU.