Hash is a cannabis extract, made when trichomes, the resinous glands that line the surface of cannabis plants, are removed and processed into a concentrated form. It is usually brown or dark green in color and comes in a brick or ball.
Hash is a solventless extract, as trichome removal is done with physical manipulation and temperature changes, not with the use of solvents or chemicals.
There are a few different types of hash, and processes to make it have been practiced for centuries.
