Professional Marijuana Grower November-December 2018 Issue | Page 14

Ice Water Hash Let’s get growing naturally Strictly speaking, ice water is the solvent used in this ex- traction method. However, using ice water for extraction is extremely safe and there are no potentially harmful residuals left behind by the “solvent”. To make ice water hash, the plant material (usually fresh, but dried can also be used) is mixed with ice water to get the trichomes cold. A series of bags, each with a different size mesh bottom is placed in the holding container before mix- ing begins. Many processors use a fi ve gallon bucket, a plastic garbage bin, or some other non-permeable holding container. After vigorously mixing the ice water to remove the trichomes from the plant material, the bags are lifted out one at a time to strain the plant material. The fi rst bag with the largest size screen is removed fi rst. This bag will contain the majority of the plant material. The other bags are lifted in order. The fi nal bag in the series has the smallest size screen and will contain the highest concentration of THC and other cannabinoids. The extract collected from each bag can be dried and sorted by grade (the smallest size screen will have the highest potency). Once the extracted hash has dried completely, it can be enjoyed like other hashes. Rosin To see the full line of Age Old products and find a dealer near you please visit: www.tradewindsgarden.com The most exciting non-solvent cannabis extract to hit the market is rosin. Rosin is a solid form cannabis extract made by applying pressure and heat to the cannabis fl owers in order to vaporize volatile liquid terpenes. Essentially, rosin is made when the cannabis material is put under extreme pressure, while also being heated to a desirable temperature (somewhere between 250-335 degrees F). Rosin has a similar potency to many of the popular solvent-based extracts, but without the potential dangers associated with the solvents during process- ing or as residuals. For these reasons, rosin is steadily growing in popularity among processors and consum- ers. Rosin is also signifi cantly less expensive to produce than most solvent-based methods, making it even more appealing. Extracting with a Solvent Extracting cannabis with a solvent can include many techniques and various solvents. Advanced chemical 14 • Professional Marijuana Grower November/December 2018