Bubble hash is a cannabis concentrate comprising countless trichomes, or resinous glands, that have been separated from the plant using ice water, agitation, and a sieve. Bubble hash gets its name from the way that it bubbles when exposed to flame. Like traditional hash, bubble hash is a solid concentration of cannabis resin glands, or trichomes. It can range in color from light blonde to dark brown. The easiest way to consume this concentrate is to either sprinkle some in your normal joint or on top of your regular bowl for a extra-potent tokeable treat.