If I may quote (be lazy) the Sierra website: "Hop Hunter IPA harnesses the complex flavors of just-picked hops through an all-new method of steam distilling wet hops before they even leave the fields. This revolutionary technique captures and intensifies the natural flavors, creating a unique and intensely aromatic beer. Our custom process gathers pure hop oil which, when combined with traditional whole-cone hops in the brew kettle and in our Hop Torpedo, makes for an incredible IPA experience." I have a source that says they hired the guy at Crest toothpaste who distills the mint leaves. Who knows!