Rosin made from hash, or hash rosin, is considered by many to be one of the purest forms of cannabis concentrate. Cannabis rosin is made by combining high heat and immense pressure. Terpene and cannabinoid-rich oil (resin) is forced out of cannabis plant material called trichomes using a rosin press. Biscotti is a potent indica-dominant hybrid marijuana strain reportedly made by crossing Gelato 25 with Sour Florida OG. Others report that Biscotti is Motorbreath x G41. This strain produces a cerebral high that leave consumers feeling relaxed, creative, and buzzy from head-to-toe.