The most common way to make Bubble Hash is by putting the cannabis into mesh bags and then filtering a mixture of plant matter, ice and water through them until a silt-like substance collects at the bottom. Bubble hash gets its name from the bubbles that form when “full melt” bubble hash is smoked. Full melt is an especially refined type of bubble hash.
Bubble hash is thought to be more refined than traditional hash, but less refined than popular new extracts such as Shatter or Wax. Bubble hash may contain up to 60% THC while other concentrates may contain up to 90%. Bubble hash can be consumed with cannabis in a pipe, or rolled with cannabis into a joint. Only small amounts of bubble hash are needed to achieve the desired high.