What is Dry hopping in the beer making process for microbrewery?
- Jan 16, 2021
- 164
- tiantai
Definition of modern dry investment:
Putting hops directly into the beer fermentation barrel tank (whether in the main fermentation period or the storage mature period in bright beer tank) is called dry hopping for microbrewery.
Temperatures above 85 ° C can help the alpha-acids in hops to quickly be converted to the soluble iso-alpha-acids, which provides bitterness to the beer and is also lost due to boiling and evaporation A lot of fragrance (hop essential oil evaporates in 15-20 minutes).
In the cool fermentation tank, the bitter substance alpha acid of hops cannot be dissolved into the beer isomerically, and the aroma substances slowly penetrate into the beer, providing extra hop aroma and flavor to the beer.
Granular hops are the first choice, although they will cause some turbidity (can be solved with a filter / hop bag), the smaller the particles, the easier it is to extract the aroma; the complete flower fragrance is protected by hop glands and difficult to extract; It is slower and sucks up a lot of your liquor.
And hop extracts in microbrewery, such as carbon dioxide extracts, are also very suitable for cold processing of hops, that is, dry hopping, but the uneven distribution of the extract after dissolution in the brewery.
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