Hash is the resin of the cannabis plant. it is harvested a number of ways including freezing, beating, rubbing, melting, pressing, or washing it off. It is considered a concentrate and is usually vaporized or smoked in small amounts in pipes, dab rigs, and joints. Since it doesn’t burn well by itself in a joint, it is often mixed with cannabis herb or tobacco.
stoner Selected answer as best December 9, 2018