1. The definition, in one sentence
Hash is the collection of resinous glands from a cannabis plant, separated from the plant material and compacted.
These glands are called trichomes. They cover the flowers with a shiny frost and contain nearly all of the plant’s cannabinoids and terpenes. The rest—leaves, stems, fibers—contains almost none.
Making hash, therefore, involves discarding what is useless to keep only what matters. The word “concentrate” is misleading: nothing is added or processed; we simply remove the excess.
Why the plant produces this resin—and what its color reveals—is the subject of our article on trichomes.
2. Hash or Flower: What’s the Difference?
These are two forms of the same harvest, not two separate products.
|
Flower |
Hash |
| Composition |
Plant material + trichomes |
Trichomes alone |
| Concentration |
Moderate |
High |
| Appearance |
Dried bud |
Pellets or compacted powder |
| Storage |
Sensitive to drying out |
Sensitive to heat |
| Amount of material |
— |
10 g of hash = 65 to 650 g of flowers |
That last line explains almost everything about the market. Resin accounts for between 1.5% and 15% of the total weight of the flowers used, depending on the strain and the method. It’s this ratio that makes certain prices mathematically impossible—the full calculation is in our article on what honest resin actually costs.
3. What “CBD” Changes—and What It Doesn’t
This is the question we get asked most often, and the answer is simpler than you might think.
What doesn’t change: the plant, the glands, the sifting, the pressing, the techniques, the appearance, the smell, and the texture. CBD hash is made exactly like any other hash, using the same expertise.
What does change: the source genetics. Certain strains produce mostly CBD and very little THC—not through processing, but by nature. The resulting hash therefore has no psychoactive effect, while retaining the substance, taste, and ritual.
It is therefore neither a substitute nor a “light” version. It is the same product derived from a different plant. The distinction between the two molecules is detailed in our article comparing THC and CBD.
4. How It’s Made
All methods share the same goal: to detach the trichomes from the buds without breaking them. They differ in the methods used.
- Dry sifting —the material is shaken while cold over sieves of decreasing fineness. This is the traditional method from the Moroccan Rif region, and the one we use.
- Bubble hash —same principle, but in ice-cold water, where agitation detaches the glands, which are then filtered out.
- Charas —fresh flowers are rubbed by hand, and the resin accumulates on the skin. Low yield, an age-old technique.
Next comes pressing, which transforms the powder into a slab. This is the riskiest step: if it gets too hot, it can destroy in a matter of minutes what the sifting process took hours to isolate.
Details on each method can be found in our guide on how hash is made, and the complete journey from seed to slab in From Plant to CBD Hash.
5. Pollen, kief, charas: Words That Get Mixed Up
The vocabulary of this market is a minefield, and this confusion suits a lot of people just fine.
- Kief — sifted trichomes, still in powder form, before any pressing.
- Charas — resin harvested by hand from fresh plants.
- Resin, hashish, hash —three words for the same thing.
- “Pollen” —a complete misnomer. Botanically speaking, what’s sold under this name has nothing to do with pollen. The term is mainly used to pass off one product as another.
Each of these terms is explained in detail in our article on the real terms of hash.
Another term that pops up everywhere but is often misunderstood is “micron.” It refers to the size of the openings in a sieve—that is, what passes through, not what is retained. This topic is covered in full in our guide to micron sizes.
6. The Major Categories
Two traditions coexist, and they aren’t two levels of quality.
Moroccan outdoor hash —open-field cultivation, dry sifting, sun-drying. A product that reflects its terroir and harvest year, with all the variations that entails.
Swiss indoor resin —controlled environment, consistency from batch to batch, and a stable profile.
One is shaped by its terroir; the other is shaped by a controlled environment. We produce both, and we don’t rank one above the other—the detailed comparison is in our article on Moroccan hash or Swiss resin.
7. Is it legal?
Yes, under certain conditions—and those conditions vary from country to country.
Legality hinges on a single criterion: the product’s total THC content, which must remain below a threshold set by each country. This threshold differs between Switzerland, France, and the European Union, as does the method used to calculate it.
It is the laboratory analysis of the batch that confirms this, not the product’s origin or the seller’s word. A comparison of the markets can be found in our article on the differences between Switzerland, France, and the European Union.
8. How to Tell if Hash Is Good
Four steps, no equipment needed, in five minutes.
- Scrape it—the powder that comes off should be lighter in color than the outer crust.
- Smell it cold, then warm it between your fingers —the scent should open up, never turn chemical.
- Squeeze for ten seconds —it should gradually soften, never feel greasy right away.
- Request a batch analysis, including the batch number.
The essentials boil down to three points: an airtight glass container, protected from light, stored at 16–18 °C with 55–62% humidity. For a stockpile or large quantity, a cooler temperature preserves it better. Full details are in our article on how to store CBD hash.
