Definitions for "DRY HOPPING"
Keywords:  hop, wort, beer, aroma, cask
IS PUTTING HOPS INTO THE SECOND FERMENTER FOR AROMA AND FLAVOR. MUCH OF THE AROMA FROM THE FINISHING HOPS OF THE BOIL CAN BE LOST BY VIGOROUS OUT-GASSING OF THE FERMENTATION PROCESS.
"Dry hops" are any hops added to a beer during or after fermentation. Since these hops are not exposed to boiling (or even hot) wort, the bittering acids from the hops are not effectively extracted. However, the aromatic oils responsible for hop aroma are extracted, and in an unadulterated state that many feel expresses the true character of a good hop variety. Although dry hopping is typical of many beer styles, the technique is most commonly associated with the Pale Ale style and all its subcategories.
The addition of dry hops during first or secondary fermentation to add a hoppy character to the beer without affecting the beers bitterness.