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The most common form of hash sold in the United States is bubble hash. This variety is sometimes referred to as icewater hash because it is made by stirring marijuana into a very cold bucket of water in order to freeze off the trichome glands from the plant. The resulting mixture is poured through a series of three to five mesh screens for further filtering. The finished product is then dried and may contain a THC range between 70 and 80 percent. Bubble hash may be either light or dark brown.