Why are Fresh Hops so special?

Fresh hops contain little pockets of potent potables called lupulin glands that contain hop acids and essential oils full of terpenes. Terpenes are aroma compounds that express the truest hop aromas, from fruity herbal notes of Sabro to the citrusy pine notes of Simcoe. Once their picked, the hops are rushed to the brewery from the Yakima Valley, Wash. to go into the beer fresh to make sure all of these compounds are preserved.