The Medical Cannabis Guidebook: The Definitive Guide To Using and Growing Medicinal Marijuana by Jeff Ditchfield & Mel Thomas

Author:Jeff Ditchfield & Mel Thomas [Ditchfield, Jeff]
Language: eng
Format: epub
ISBN: 9781937866020
Publisher: Green Candy Press
Published: 2014-10-12T22:00:00+00:00

Ice-Water Separation aka Isolator (Bubble Hash)

This is an extraction technique for separating the trichomes from the cannabis plant material. This process requires ice, water and agitation and filtration bags with variously sized screens. Cannabinoids are insoluble in water, but if you place cannabis plant material into cold water, the trichomes will become brittle. If they are then agitated, they will be dislodged from the plant into the cold water. Ideally, the temperature should be one or two degrees above freezing and this is achieved by adding plenty of ice to the water during the process. The cold water is then strained through the various bags that have very fine mesh screens in their base. The first bag in the system is a mesh of around 220 microns (a micron is a millionth of a meter), which removes the majority of the plant material. The trichomes are collected by the remaining bags, which have smaller meshes. Some of the finest screens are as small as 25 microns, and these finer screen grades produce very potent bubble hash. This hash can then be further processed to make a high-quality, medical-grade oil.

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