Cannabis crumble is a cannabis concentrate that breaks into dry pieces. Extractors pull cannabinoids and terpenes from plant material with a solvent, then remove the solvent in a vacuum oven. The result is an opaque solid with a texture like brown sugar or dried honeycomb. THC content in tested crumble runs from 60% to 80%.
How to Make Cannabis Crumble at Home
How Crumble Is Made
Production starts with cured cannabis flower. A hydrocarbon solvent, most often butane or a butane and propane mix, moves through packed plant material. The solvent collects THCA, other cannabinoids, terpenes, and waxes.
Cannabis Crumble vs Shatter Consistency: Which to Pick First
The extractor then purges the solvent. A vacuum oven pulls residual solvent out at low heat over several hours. Heat, moisture, and agitation during the purge set the final texture. Low terpene content and low moisture produce crumble. Higher terpene content produces budder or sauce.
Some producers make live crumble. Plant material goes into a freezer within hours of harvest, and extraction runs at cold temperatures. Live crumble holds more terpenes than crumble made from cured flower.
Texture, Potency, and Terpenes
- THC: 60% to 80% in most lab tests, with some batches above 85%.
- THCA: the main cannabinoid in raw crumble. Heat converts it to THC.
- Terpenes: 1% to 5% by weight, below live resin and budder.
- Texture: dry and granular. It separates under a dab tool instead of stretching.
- Color: pale yellow to tan, with a dull surface.
How People Use Crumble
Crumble goes into a dab rig, an e-nail, or a portable vaporizer. The user heats a surface to 400 F to 600 F and places a small piece on it. The extract vaporizes and the vapor is inhaled. Crumble also works as a topper on a bowl of flower or inside a joint.
Crumble is not ready to eat. THC in the extract sits in acid form as THCA. Decarboxylation with heat converts THCA to THC. A common kitchen method holds the extract at 220 F to 240 F for 30 to 60 minutes before it goes into an edible.
Dose control matters. A piece the size of a grain of rice weighs about 25 mg. At 70% THC, that piece holds about 17 mg of THC.
Storage
Keep crumble in an airtight glass jar. Air, light, and heat strip terpenes and dry the extract further, which changes flavor. A cool, dark drawer works for weeks. A refrigerator works for longer storage. Let the jar reach room temperature before opening it, so condensation does not form on the extract.
Crumble holds its shape in warm rooms better than shatter. Shatter turns soft and pulls apart at 80 F and above.
Testing and Labels
Licensed US producers test concentrates for potency, residual solvents, pesticides, microbials, and heavy metals. State rules set the solvent limits. Labels from licensed shops list THC and CBD percentages, the batch number, and a production date. In states with adult use programs, the purchase age is 21.
Crumble Compared to Other Concentrates
- Wax: soft and opaque, made with more heat and agitation during purge.
- Budder: creamy and whipped, with higher terpene content.
- Shatter: a glass-like sheet with low moisture and low terpene content.
- Live resin: made from fresh frozen plant, with higher terpene content.
- Rosin: solventless, pressed from flower or hash with heat and pressure.