Most writing about concentrates is aimed at people who make them. This one is about reading them: what the label and the certificate of analysis (COA) tell you. It is meant for patients, for clinic and licensed-facility staff, and for anyone curious about what the names mean.
It is not a shopping guide. In Thailand, THC concentrates are not an over-the-counter product (see the legal note below). In most of the region they are seriously illegal.
Warning: Southeast Asia
In most Southeast Asian countries, including Singapore, Malaysia, Indonesia and Vietnam, possessing or importing cannabis concentrates is a serious criminal offence with very heavy penalties. Even in Thailand, THC extracts are Category 5 narcotics outside the licensed system. This article is educational only. It does not encourage anyone to buy, carry, send or import concentrates.
Concentrate names sound like they describe quality, but they actually describe texture and process, and those are two different things. This post explains how to work out from a label what a product actually is.
The one distinction that matters most: solvent or solventless
Everything else is detail. Start here. The full process explanation is in topic 1352. Here is the short version.
Solventless products, hash and rosin, are made only with heat, pressure, ice water and agitation. Solvent-based products, such as shatter, budder, wax, crumble, sauce and distillate, are made by dissolving the resin in butane, propane, ethanol or CO₂ and then removing the solvent.
Neither category is automatically better. Solventless products have no residual-solvent question. Solvent extraction can be done very cleanly by a competent operation. A well-purged hydrocarbon extract from a licensed facility is a safer product than a badly made rosin from an unventilated room. The category tells you what questions to ask, not what the answer is.
The vocabulary, decoded
Live (as in live resin, live rosin) means the starting material was fresh-frozen at harvest rather than dried and cured. Monoterpenes are volatile and are lost during drying and curing, so freezing keeps a terpene profile closer to the living plant. “Live” is a claim about input material, not about process and not about quality.
Rosin is solventless, made with heat and pressure. Live rosin normally means rosin pressed from ice-water hash made from fresh-frozen material. It is one of the most labour-intensive concentrates to produce.
Resin is confusing: live resin is usually solvent-extracted from fresh-frozen material. It is one letter away from rosin but made by the opposite process. This is the most common point of confusion in the whole category, and some sellers do not correct it.
Shatter is a solvent extract that has been stabilised into a glassy, translucent sheet. Shatter is a texture, produced by how the extract is purged and handled. It is not a purity grade, though it is often sold as one.
Budder / badder / wax / crumble are the same class of solvent extract, agitated or whipped during purging so that it crystallises into an opaque, softer consistency. Again, this is texture, not grade. Shatter and budder can come from the same run of the same material.
Distillate is extract that has been distilled to isolate cannabinoids, typically to 85–95%+ THC. Distillation strips out essentially everything else, including terpenes. Any distillate that tastes of something has had terpenes added back afterwards. Distillate is the base of most vape cartridges.
“Live” distillate / “live resin distillate” is distillate with terpenes added back that come from fresh-frozen material. These products do exist. The cannabinoid base has still been through distillation, and only the added terpenes are “live”. Read the label for where the terpenes came from.
Sauce / HTFSE / diamonds are products where crystallised cannabinoid (the “diamonds”) is separated from a terpene-rich liquid fraction (the “sauce”) and then recombined.
Where the terpenes actually go
This explains most of the differences between product types, and it helps to understand the mechanism rather than memorise a ranking.
Terpenes are volatile. That is what makes them smellable, and it is also what makes them fragile. Two things destroy them: heat and time in contact with air.
So, roughly in order of terpene retention:
- Fresh-frozen input keeps more than dried and cured input.
- Low-temperature processing keeps more than high-temperature processing.
- Distillation removes essentially all of them, by design.
That gives a usable rule: live rosin and live resin are terpene-forward products; distillate is a cannabinoid-delivery product. Neither is a defect. They are built for different purposes, and a distillate cannot reproduce a specific cultivar’s full profile, whatever terpenes are added back.
A related point that catches people out: a high THC percentage on a concentrate label tells you almost nothing about the rest of the product. Distillate will usually test higher on THC than live rosin, because it has been stripped of everything else.
Product types at a glance
| Product | Input material | Process | Terpene retention | Key test to check |
|---|---|---|---|---|
| Ice-water hash | Fresh-frozen or dried/cured flower and trim | Ice water and agitation, sieved, dried | High, especially from fresh-frozen input | Microbials and mycotoxins; pesticides |
| Live rosin | Fresh-frozen material, usually via ice-water hash | Low-temperature heat and pressure | High | Microbials and mycotoxins; pesticides; terpene % |
| Flower rosin | Dried/cured flower | Heat and pressure | Moderate | Pesticides; microbials |
| Live resin | Fresh-frozen material | Hydrocarbon solvent, then purge | High if purged at low temperature | Residual solvents; terpene % |
| Shatter / budder / wax / crumble | Usually dried/cured material | Hydrocarbon solvent, purged and handled for texture | Low to moderate | Residual solvents; pesticides |
| Sauce / HTFSE / diamonds | Often fresh-frozen material | Solvent extraction, then crystallisation and separation | High in the sauce fraction | Residual solvents; terpene % |
| Distillate (incl. “live” distillate) | Crude extract from any input | Distillation; terpenes may be added back | Essentially none unless added back | Residual solvents; heavy metals if in a cartridge; terpene source |
Signs of a good product
In the jar:
- Colour. Pale gold to light amber generally indicates good starting material and careful processing. Very dark brown or black usually means degraded material, overheated processing, or plant matter carried into the extract. Colour is a weak signal, not proof: some genuinely good products are darker.
- The consistency matches the name. Shatter that is soft and sweating, or budder that has separated into layers with liquid pooling, has usually been stored badly or was not fully purged.
- Smell. A solventless product should smell like concentrated flower. A chemical, sharp or “lighter fluid” note in a solvent product is a serious warning sign about purging.
- No visible plant matter. A green tint in an extract means chlorophyll came along.
On the label:
- Batch number and harvest or production date. Without a date you cannot tell how old the product is.
- Input material described: “fresh frozen”, “cured flower”, “trim”. If the input is not stated, assume the least favourable one.
- A cannabinoid profile, not just a THC number. Total THC on its own is the least informative number on the label.
- A terpene percentage, if the product claims to be terpene-forward. A product that claims “live” quality without a terpene figure is claiming something that has not been measured.
On the certificate of analysis: a short checklist. Topic 1318 explains how to read a COA in full.
- The batch number matches the jar or cartridge.
- Residual solvents are reported for any solvent-extracted product.
- Pesticides. Residues in the flower can end up more concentrated in the extract. How much depends on the pesticide and the process, so a residue under the limit in flower can be over it in an extract.
- Heavy metals, especially for cartridges.
- Microbials and mycotoxins.
Signs of a bad product
- No COA, or a COA with no batch number linking it to the product in front of you. A generic COA on a website is not a test of your product.
- A COA that reports cannabinoids but leaves out residual solvents on a solvent-extracted product. Residual solvents are the main reason to test that kind of product.
- Terpene claims with no terpene data.
- “Live” on a distillate without explanation. At best this means terpenes from fresh-frozen material were added back to distillate (see above). If the label does not say so, it is misleading.
- Cartridges with no hardware information. Studies have found nickel, chromium, lead and copper leaching from cartridge metal parts into the oil and vapour. Leaching was greater in older devices and at higher temperatures (scoping review, The Scientific World Journal, 2025). You cannot see it.
- A price that does not make sense. Live rosin is costly to produce, because ice-water extraction from fresh-frozen material has low yields and takes a lot of labour. A low-priced product labelled “live rosin” is very likely not genuine live rosin.
- The same colour across a whole range. Real extracts from different cultivars and different runs vary. A range where everything is the same shade of gold is often distillate with different terpene blends added.
A legal note for Thailand
Flower: Under the Notification of the Ministry of Public Health Re: Controlled Herbs (Cannabis) B.E. 2568 (issued 26 June 2025), cannabis flower is a controlled herb. Flower may be dispensed only against a prescription on form PT 33 issued by an authorised practitioner. Each prescription covers no more than 30 days and is single use (no refills). Online sale and advertising of flower are prohibited, and recreational use is not permitted.
Concentrates are a different legal category. Extracts containing more than 0.2% THC by weight are Category 5 narcotics. They are governed by the Ministerial Regulation on Licensing for the Production, Importation, Exportation, Sale or Possession of Category 5 Narcotics Specifically Cannabis or Hemp Extracts B.E. 2569, published in the Royal Gazette on 26 March 2026 and in force from 26 April 2026. Production, import and export licences are restricted to Thai juristic persons that are not “foreign” under the Foreign Business Act B.E. 2542, to government agencies, and to the Thai Red Cross Society. Licences are granted only for set purposes: medical use, research and education, industrial use, and official narcotics suppression.
What this means in practice:
- A controlled-herb (flower) shop licence does not authorise selling concentrates such as rosin, shatter, budder or distillate.
- Patients get THC extracts only through the licensed medical route: a prescription from an authorised practitioner, with the product supplied through licensed medical channels.
- A THC concentrate offered over the counter, online or without documentation is outside the legal system, and that is a far bigger problem than its quality.
The Cannabis Control Act is still a draft: the Cabinet approved it on 22 September 2026 and sent it to the House. For a fuller walk-through of the 2026 regulations, see topic 1330.
This post covers reading labels and COAs. For the production side, see topic 1352 (solvent vs solventless) and topics 1313, 1315 and 1354. Topic 1318 covers certificates of analysis in detail. Process questions belong in the extraction category.