What is rosin?
Rosin is a cannabis concentrate made by applying heat and pressure to buds or hash, without using any solvent. The result is a thick, golden or amber resin, very aromatic and highly concentrated in cannabinoids.
With heat and pressure, the resin in the trichomes (the tiny glands that cover the buds) turns liquid and separates from the rest of the plant. It's a bit like squeezing a piece of fruit: the juice comes out and the pulp stays behind.
What makes rosin special is that it contains no chemical solvents: it's just resin from the plant. That's why many consumers value it as a "clean" concentrate that keeps the strain's original flavor well.
It's named after rosin, also called colophony, the resin that musicians rub on their violin bows, because it looks similar.
What rosin is like
Its appearance changes quite a lot depending on the starting material and how it's handled afterwards. It can look like sticky sap, wax or cream, and its color ranges from light gold to dark amber.
Rosin, hash and BHO
- Hash: pressed resin, the traditional, solvent-free form.
- Rosin: resin separated with heat and pressure, also solvent-free.
- BHO: resin separated with butane gas. Making it's dangerous, because the gas is flammable.
What about the seeds?
How much rosin you get, and how good it is, depends mainly on how much resin the plant has. That's why people looking for strains for extracts go for ones that produce lots of trichomes. When the seed bank highlights it, you'll see it on the product page.
Related terms
Before you grow, check the laws in your country: growing cannabis is not allowed everywhere.
