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Fresh cannabis plants are around 80% water (all %'s by weight); curing generally begins after the cannabis has lost half of it's initial mass, and contains approximately 33% of it's initial water.
The drug is a highly concentrated form of tetrahydrocannabinol (THC), and itâs much more potent. In fact, A 2009 United Nations âWorld Drug Reportâ stated that it can contain anywhere from 60 to 90 percent THC. The natural concentration in marijuana leaves is typically as high as 25 percent.