The smell of cannabis is chemistry, not magic. It comes from a mixture of volatile terpenes and a small family of volatile sulfur compounds, and every part of “keeping your weed fresh” is really about slowing the rate at which those molecules leave the flower.

Storage advice on the open web is mostly gadget listicles and folk rules. This guide covers what actually causes the aroma, what happens to it over weeks and months in a jar, the container and humidity stack that preserves it best, and what works — and what does not — for reducing cannabis odour in a room.

Five factors that degrade stored cannabis — oxygen, temperature, light, moisture drift and agitation — each with its practical fix
Sealed, cool, dark and stable. Those four words are the entire storage recipe.

Key Takeaways

  • Cannabis smells because of volatile terpenes plus a small group of volatile sulfur compounds (VSCs). The specific “skunk” note is a VSC called 3-methyl-2-butene-1-thiol, not myrcene.[1]
  • Fresh weed smells louder than old weed for a measurable reason. VSCs reach maximum during curing and drop after roughly one week of storage.[2]
  • Terpene loss in ordinary open storage is well documented. Ross & ElSohly (1996) reported roughly 31%, 45% and 55% monoterpene loss at one week, one month and three months.[3]
  • Four things degrade stored cannabis, in order: oxygen exposure, temperature, light, and moisture drift. Sealing, cool, dark and stable humidity — that is the whole recipe.
  • The ASTM standard for dry cannabis flower is a water activity of 0.55 to 0.65, which is why 58% and 62% humidity packs both work.[4]
  • Ozone generators are not a legal domestic odour tool in Canada. Health Canada advises against them and sets an indoor limit of 20 ppb (8-hour average).[5]
  • Legal Canadian packaging is child-resistant by regulation — Cannabis Regulations s. 108 references the child-resistant standard in the Food and Drug Regulations. Store accordingly at home.[6]

What Actually Causes Cannabis to Smell?

Cannabis smells because of a mixture of volatile organic compounds released from glandular trichomes on the surface of the flower. Two chemical families do nearly all of the work: terpenes and terpenoids, and a small family of volatile sulfur compounds (VSCs).[1]

Terpenes are the abundant part — myrcene, limonene, pinene, caryophyllene, terpinolene and roughly a hundred others in trace amounts. VSCs are present at far lower concentrations but have odour detection thresholds thousands of times lower, so a tiny amount produces the specific loud notes people call “skunky” or “gassy.”[1]

Both families live in the same place on the plant. Glandular trichomes — the small stalked structures on the flower surface — are where cannabis makes and stores its volatile chemistry. Anything that damages, warms or airs out those structures accelerates the release of what they hold.

Which Terpenes Are Responsible for the Aroma?

The abundant terpenes in most cannabis are myrcene, β-caryophyllene, limonene, α-pinene, linalool, humulene and terpinolene. Different chemovars carry different ratios, and the labels on shop shelves rarely capture that with any precision.

The two peer-reviewed sensory studies worth knowing here found that terpene profile alone is a weak predictor of what a person smells. A large 2025 study of 91 cannabis samples with trained sensory panels reported that “terpinolene was the only compound consistently associated with sensory descriptors, specifically citrus and chemical,” and that neither terpene nor VSC profiles by themselves strongly predicted sensory perception.[7] Aroma is a mixture problem, not a single-molecule problem.

TerpeneTypical aroma characterAlso found in
β-MyrceneEarthy, musky, mango-like, herbalHops, mango, thyme, bay
β-CaryophyllenePeppery, woody, warm-spiceBlack pepper, cloves
LimoneneCitrus, orange-peel, brightCitrus rinds
α-PinenePine, forest, sharp resinPine needles, rosemary
LinaloolFloral, lavender, slightly spicedLavender, coriander
HumuleneEarthy, hoppy, mild woodyHops, sage
TerpinoleneCitrus and chemical notes; the strongest sensory predictor in a 2025 study[7]Nutmeg, tea tree, apples

The named strains on a shop shelf do not reliably predict any of this. Two samples sold under the same name are frequently different chemistries — see article #2 for the evidence.

Why Does Some Weed Smell “Skunky” Specifically?

Because of a small group of volatile sulfur compounds that share a structural feature — a prenyl group attached to a thiol — and one of them, 3-methyl-2-butene-1-thiol, is the primary driver of the classic skunk note.[1]

Oswald et al. (2021) analysed 13 cannabis cultivars using comprehensive two-dimensional gas chromatography with sulfur-selective detection and identified a new family of prenylated VSCs; the cultivar with the highest total VSC concentration also had the loudest skunky aroma to a trained panel.[1] A 2022 follow-up using multidimensional gas chromatography with olfactometry confirmed the same compound as the specific skunky odorant, describing it as having “an intense, sulfuric, skunky aroma even in extremely dilute concentrations.”[2]

The point worth remembering: the skunk smell is not myrcene. Myrcene is often the most abundant terpene by mass in a given sample, and it has an earthy, musky character, but the specific skunk note is chemically a different family of molecule, present at far lower concentration and detected by the nose at correspondingly lower thresholds.

How Does Cannabis Lose Its Smell Over Time?

Volatile compounds evaporate. That is the whole story, and it happens whether the jar is open or closed — just faster in the open.

The skunk-family VSCs disappear first. Oswald et al. observed that these compounds “increase substantially during the last weeks of the flowering stage, reach a maximum during curing, and then drop after just one week of storage.”[2] One week. That is why a freshly cured jar smells louder than a jar that has sat in a drawer for a month, even when both are sealed.

The terpenes go more slowly but they also go. The foundational storage measurement — Ross and ElSohly, 1996, as summarised in Bueno et al. — reported approximately 31% monoterpene loss at one week, 45% at one month, and 55% at three months in an unpackaged reference condition.[3] Modern data broadly agrees with the direction if not the exact numbers, and the exact numbers depend heavily on how the flower was cured, how it was packaged, and where the jar sat.

FactorWhat it does to stored cannabisPractical response
Oxygen exposureOxidises cannabinoids (THC → CBN) and lets volatile terpenes and VSCs escape the headspaceSealed container, filled reasonably full
TemperatureEvery ~10 °C roughly doubles the rate of many chemical processes, including the ones that fade aromaCool, stable — a cupboard, not a windowsill
Light (UV especially)Breaks cannabinoids down photochemically; degrades some terpenes directlyOpaque or amber container, or a dark cupboard
Moisture driftToo dry: brittle, dusty, harsh smoke. Too wet: mould risk begins around water activity 0.65 (~65% RH)[4]Two-way humidity pack in a sealed jar
Physical agitationKnocks trichome heads off the flower and onto the container; releases what they heldHandle the jar, not the buds

The smell-loss stack

These factors do not act in isolation — they multiply. A warm, sunny, half-full jar loses aroma many times faster than a cool, dark, filled jar, and the ratio is closer to an order of magnitude than to a percentage. The framework worth carrying is that oxygen exposure and temperature dominate, light and moisture are the modifiers, and physical handling is the free variable most people ignore.

What’s the Best Way to Store Cannabis?

An opaque or amber airtight glass jar, kept in a cool dark cupboard, with a two-way humidity pack sized to the container. That is the whole system for a consumer-scale amount.

Everything else in this article is elaboration on that sentence. The mason-jar-and-humidity-pack approach exists because it addresses each item in the smell-loss stack cheaply: glass is inert and airtight, opaque or amber blocks light, a cupboard is thermally stable, and a two-way humidity pack holds moisture near the ASTM range for dry cannabis flower.[4]

Storage elementWhat it doesWhat to avoid
ContainerAirtight, chemically inert, doesn’t react with terpenesThin plastic bags; pop-top vials with sponge liners
LocationCool, dark, stable — a cupboard or drawer away from an oven or windowOn top of a stereo, near a heating vent, on a sunny shelf
Humidity controlA two-way pack sized to the container: 58% or 62% RH[4]Adding “a piece of orange peel” — introduces mould risk
Fill levelReasonably full to minimise headspace oxygen; several small jars beat one big one when using less than half a jarA quarter-full jar the size of a fishbowl
HandlingRotate to bring flower to the lid rather than always shaking; avoid finger contactGrinding a week’s supply and returning it to the jar — see article #8 for why

What Container Should You Use?

Glass, preferably opaque or amber, with a gasketed lid. Anything else is a compromise. Metal is a distant second — it is airtight but reacts with some terpenes and is opaque only if painted. Plastic and silicone are the worst common choices for anything longer than a day.

The reason glass wins is chemistry, not tradition. Terpenes are lipophilic, meaning they dissolve into and diffuse through many plastics; sit ground flower in a plastic bag for a week and some of the aroma migrates into the bag itself. Glass does not do this. It also does not off-gas anything of its own into the flower.

ContainerRating for consumer storageWhy
Glass mason jar (clear)Very good in a cupboard, poor on a shelfAirtight and inert; UV passes through clear glass, so the cupboard matters
Glass jar (amber or opaque)ExcellentAll the benefits of glass plus light protection
Stainless steel tin with gasketGoodAirtight and opaque; some grades slightly react with terpenes over months
Original legal-market pouchGood short term, mediocre long termOpaque and mostly airtight; not a proper humidity-controlled system
Pop-top plastic vial with foam linerFair for a day, poor for a weekFoam liners absorb terpenes; the seal is limited
Ziplock or “smell-proof” bagPoor for storage of any durationPlastic absorbs terpenes; seal fails; humidity is uncontrolled
Silicone containerFine for concentrates in the short term; not for flowerSilicone binds cannabinoids and some terpenes over time — see article #1

What about “smell-proof” bags?

A carbon-lined pouch marketed as smell-proof is a mild carrying convenience, not a storage container. The carbon layer adsorbs a fraction of what escapes the flower on its way through the fabric; it does not stop the flower drying out, it does not stop humidity swings, and it does not stop light. Use one for transport if you like. Do not use one as a jar.

Humidity scale showing the ASTM range of 55 to 65 percent relative humidity for dry cannabis flower, with 58 and 62 percent pack sizes marked
Two-way packs sized to the jar, plus a hygrometer to verify. Both shop sizes sit inside the ASTM band.

What Temperature and Humidity Are Ideal for Storage?

Cool, dark, and a water activity of 0.55 to 0.65 — roughly 55 to 65% relative humidity in the sealed headspace of a jar. That is the ASTM specification for dry cannabis flower, and it is why the two humidity-pack sizes you see in shops are 58% and 62% RH.[4]

Below about 55% RH, cannabis dries out — terpenes volatilise faster, trichomes get brittle and knock off during handling, and smoke gets harsh. Above about 65% RH, the water activity of the flower crosses the threshold at which some microbial growth becomes possible, and mould risk rises sharply.[4] The safe consumer range is narrow.

Relative humidityWhat happensVerdict
< 45% RHFlower crumbles; terpenes stripped fast; smoke is harsh and coughyToo dry
55% RHLower bound of the ASTM range[4]; drier smoke, longer shelf life, some terpene volatilityFine; typical 58% humidity pack target
58–62% RHConsumer sweet spot; texture pleasant, aroma preserved, no mould risk in a clean containerIdeal for most people
65% RHUpper bound of the ASTM range[4]; risk of surface mould begins to rise on any contaminated materialCeiling — do not go higher
> 70% RHMould is a real possibility; harder to combust; taste degradesToo humid

These values apply to consumer-scale storage. For bulk-scale storage (a case or a pound at a time), the physics are different — see the Bulk Farms guide on humidity control for volume.

What temperature

Cool and stable beats cold and swinging. Anywhere between about 15 °C and 21 °C (roughly a cool cupboard to a comfortable room) is fine; the killer is fluctuation — a container that warms in the afternoon and cools overnight condenses moisture on the inside of the lid, and that dripping water is where surface mould finds a foothold. A cupboard away from any appliance is the correct answer for almost every home.

Does Freezing Cannabis Preserve It?

Yes, for long-term storage of well-cured, dry flower in a sealed opaque container — with caveats. No, for handling fresh or moist flower, because the trichomes go brittle and shatter off the plant.

The physics is straightforward. Cold slows every chemical process that fades aroma. A freezer at −18 °C is more than 30 degrees below room temperature, which by the ten-degrees-doubles-the-rate rule works out to somewhere between an eight- and a sixteen-fold slowdown. That is real preservation.

ScenarioFreezer friendly?Why
Well-cured, dry flower in a sealed opaque glass jarYesPhysics works as above; treat the jar gently when thawing
Cured flower in a vacuum-sealed pouchYesSame, and the pouch reduces headspace
Fresh, moist or under-cured flowerNoWater in the plant expands as it freezes; texture and terpene structure both suffer
Loose flower in a bag you plan to open and useNoEvery open-and-close cycle condenses moisture on the flower
Extracts (shatter, rosin, distillate)Yes, with a rigid containerExtends usable life significantly — see article #1 for concentrate specifics

The one procedural rule with a frozen jar is let it warm to room temperature before opening. Opening a cold jar in a warm room condenses moisture on the flower — the same failure mode as an unstable cupboard, only faster. Half an hour on the counter, unopened, is enough.

What About Vacuum Sealing and Nitrogen or Argon?

Vacuum sealing helps because it eliminates headspace oxygen. Argon or nitrogen displacement on its own is not a full solution — the Bueno et al. 2020 study specifically tested argon displacement and found it did not, by itself, prevent terpene loss over six weeks.[3]

The reason is that a large part of the loss is outgassing from the plant material itself into the container headspace, regardless of what gas is in that headspace. What matters more is total volume of headspace, container permeability, temperature, and how often the seal is broken. A tight seal, a small container filled reasonably full, and a stable cool environment do more than any noble-gas trick.

TechniqueConsumer-scale valueBest use
Vacuum sealing (rigid canister)Real; reduces headspaceLong-term storage of an amount you will not open weekly
Vacuum sealing (soft pouch)Real, but plastic still absorbs terpenesFreezer storage of cured flower for months
Argon or nitrogen top-off in a jarMarginal; not sufficient on its own[3]Not worth the equipment for a consumer
Oxygen absorber sachetRemoves residual O₂ in a sealed container; does not preserve terpenesBelt-and-braces addition to a vacuum-sealed long-term jar
Two-way humidity packVery high; keeps moisture in the ASTM range[4]Every consumer jar, always

What Actually Reduces Cannabis Odour in a Room?

Ventilation with fresh outdoor air is the only universally reliable answer. Everything else — activated carbon, HEPA, sprays, essential-oil diffusers — either works partially, works only for specific molecules, or does not work at all.

Cannabis odour is a mixture of dozens of volatile molecules of different sizes, polarities and reactivities. No single filtration or masking approach captures all of them equally, and household devices sold on the basis of one mechanism rarely publish independent test data on cannabis smell specifically.

MethodWhat it does mechanicallyHonest assessment for a home
Open a window; use a bathroom fanDilutes and exhausts the odorantsThe most reliable single intervention
Activated carbon filter (in-line, sized to the room)Adsorbs many volatile organic compounds onto the carbon surfaceReal effect on many terpenes; less well characterised on VSCs specifically; peer-reviewed effectiveness data for domestic cannabis odour is thin — most published claims are vendor material
Portable HEPA air purifierFilters particles, not gasesAlmost no effect on smell; useful for smoke particulate but not for aroma molecules
Portable HEPA + carbon comboBoth mechanisms in one unit; carbon capacity is usually smallModest and diminishing — the carbon layer saturates in weeks in a smoked-in room
Air freshener sprayMasks with another odour; some contain enzymes that react with a subset of moleculesCovers smell for minutes, not hours; does not remove anything
Essential-oil diffuser or scented candleAdds more volatile molecules to the roomAdds a smell; does not remove one
Ozone generatorProduces ozone, which reacts with many organic moleculesNot safe for occupied indoor spaces — see below

The honest carbon caveat

Activated carbon is the best-marketed odour tool in the cannabis space. The mechanism is real — carbon has enormous internal surface area and physically adsorbs many volatile organic molecules — and industrial-scale carbon systems on greenhouse and grow-facility exhaust plainly work at that scale. What is thin is peer-reviewed effectiveness data for consumer-scale devices on cannabis aroma specifically. Almost every quantitative claim you will find on the open web traces back to an activated-carbon vendor. That does not make the claims wrong; it does mean the specific percentages should be read with caution.

Are Ozone Generators Safe to Use for Weed Smell?

No. Health Canada explicitly advises consumers against using ozone generators in the home, and sets a maximum indoor ozone exposure of 20 parts per billion averaged over eight hours for long-term health protection.[5]

Ozone is a reactive oxidiser. It reacts with many odour molecules, which is why devices that produce it are marketed as air cleaners. It also reacts with airway tissue. Health Canada’s guidance names coughing, chest discomfort, reduced lung capacity, breathing difficulty, and eye, nose and throat irritation as documented effects of ozone exposure, with people who have asthma or COPD at particular risk.[5]

The practical position: an ozone generator run in an occupied home is not a legitimate odour-control choice, regardless of what it is marketed for. If you have one and want to keep it, it should only be run in a sealed empty space — and even then, the room should be aired out thoroughly before anyone re-enters. Ventilation and carbon filtration are the appropriate consumer tools.

What Do Canadian Rules Say About Cannabis Storage and Odour?

Legal cannabis in Canada must be sold in a child-resistant immediate container under section 108 of the Cannabis Regulations, which references the child-resistant standard in the Food and Drug Regulations.[6] That is the relevant packaging law; there is no separate federal cannabis odour statute for a private residence.

Section 108 of the Cannabis Regulations sets the requirements for an immediate container of cannabis: it must be opaque or translucent, prevent contamination, keep the cannabis dry, have a security feature, meet the child-resistant standard in subsections C.01.001(2) to (4) of the Food and Drug Regulations, and contain no more than the equivalent of 30 grams of dried cannabis.[6] The 30-gram figure here is a regulatory ceiling on the container, not a home storage recommendation.

The odour angle sits in the accessory rules rather than the packaging rules. Section 2(1) of the Cannabis Act defines a “cannabis accessory” broadly — a thing represented to be used in the consumption of cannabis — and sections 17 and 18 govern how such accessories can be promoted, prohibiting representations that could create false impressions about performance, safety or health effects.[8] That is why nothing on this page — or on any store page — promises that a specific jar or filter will make a home free of the smell of cannabis. It might reduce it; whether it does depends on the room, the flower, and the ventilation.

RuleWhat it means for a Canadian buyer at home
Immediate container must be child-resistant[6]The pouch or bottle the flower arrived in already meets the standard; keep it, or use an equivalent
Immediate container must keep the cannabis dry[6]Any jar you use for long-term storage should seal properly, not just close
Immediate container capped at 30 g equivalent[6]A regulatory cap on packaging size, not a limit on home storage
No false impressions about accessory performance or safety[8]“This jar preserves your weed for a year” and “this bag is 100% smell-proof” are not claims a legal seller can make
No health or therapeutic representations[8]A humidor does not treat, help with, or relieve anything
Storage containers ranked from amber glass down to plastic bags, with the reason for each rating
Glass and steel are inert. Plastic is not — it takes the aroma with it.

Frequently Asked Questions

What is the best way to store weed at home?

An opaque or amber airtight glass jar, kept in a cool dark cupboard, with a two-way humidity pack sized to the container. That single sentence covers the entire consumer storage system. Everything else — vacuum sealing, freezing, inert gases — is elaboration for specific situations rather than daily use.

How long does weed stay good in a jar?

Well-cured flower in a properly sealed opaque jar with a humidity pack keeps a recognisable aroma and structure for six to twelve months at room temperature, longer in a freezer. The volatile sulfur compounds behind the sharpest smell fade within roughly a week; the terpenes fade more slowly over months. It does not become dangerous, just quieter.

Should you use a 58% or 62% humidity pack?

Either works. The ASTM specification for dry cannabis flower is a water activity between 0.55 and 0.65, which corresponds to roughly 55 to 65% relative humidity in the sealed headspace. Sixty-two percent packs feel slightly fresher on the tongue; fifty-eight percent packs produce a drier smoke with a longer shelf life. Choose either and stay consistent.

Does freezing weed damage it?

Not if the flower is well cured and dry, and the container is sealed and opaque. Cold slows every chemical process that fades aroma. The rule is to let a frozen jar warm to room temperature before opening, so moisture does not condense on the flower. Fresh or under-cured flower does suffer in a freezer; cured, dry flower does not.

Why does my weed smell like skunk?

Because it contains volatile sulfur compounds, specifically a prenylated thiol called 3-methyl-2-butene-1-thiol. It was isolated by Oswald and colleagues in 2021 as the primary driver of the classic skunk note. It is not myrcene; myrcene is a terpene with an earthy, musky character, and the skunk smell is a different chemical family entirely.

Do smell-proof bags actually work?

Carbon-lined pouches marketed as smell-proof reduce the smell that escapes during short transport. They are not storage containers. They do not stop the flower drying out, they do not control humidity, they do not block light, and the carbon layer saturates over time. Use one to carry cannabis home. Use a jar to keep it there.

Can you use a mason jar for cannabis storage?

Yes. Glass mason jars are chemically inert, airtight when the seal is intact, and cheap. Clear glass lets ultraviolet light through, so a clear mason jar belongs in a cupboard rather than on a shelf. An amber or opaque jar is better on a countertop. Add a two-way humidity pack sized to the jar and it is a complete system.

Does vacuum sealing preserve terpenes?

Partially. Vacuum sealing removes headspace oxygen, which slows oxidation. It does not prevent terpenes outgassing from the plant into whatever headspace remains, and one 2020 study specifically found that argon displacement alone did not preserve terpenes over six weeks. Vacuum plus cold plus opacity is a long-term protocol; vacuum by itself is only part of it.

Are ozone air purifiers safe for cannabis smell?

No. Health Canada advises consumers against ozone generators in the home and sets a maximum indoor ozone exposure of 20 parts per billion averaged over eight hours. Ozone reacts with airway tissue, causes coughing, chest discomfort and reduced lung capacity, and poses particular risk to people with asthma or COPD. Ventilation and activated carbon are the appropriate consumer tools.

Does cannabis go bad or expire?

It loses potency and aroma rather than spoiling in the food-safety sense. THC oxidises slowly to CBN, terpenes evaporate, and volatile sulfur compounds fade within weeks. The one genuine spoilage risk is mould, which can grow when moisture rises above roughly 65% relative humidity in the headspace of a stored jar. Keep it dry and it stays safe to consume for a long time.

References

  1. Oswald, I. W. H., Ojeda, M. A., Pobanz, R. J., Koby, K. A., Buchanan, A. J., Del Rosso, J., Guzman, M. A., & Martin, T. J. Identification of a New Family of Prenylated Volatile Sulfur Compounds in Cannabis Revealed by Comprehensive Two-Dimensional Gas Chromatography. ACS Omega, 2021, 6(47), 31667–31676. DOI: 10.1021/acsomega.1c04196 (Comprehensive 2D GC with sulfur-selective detection across 13 cannabis cultivars; identifies a new family of prenylated volatile sulfur compounds and names 3-methyl-2-butene-1-thiol as the primary driver of the skunk-like aroma.)
  2. Koziel, J. A., Guenther, A., Vizuete, W., Wright, D. W., & Iwasinska, A. “Skunky” Cannabis: Environmental Odor Troubleshooting and the “Need-for-Speed”. ACS Omega, 2022. DOI: 10.1021/acsomega.2c00517 (Multidimensional GC with olfactometry confirming 3-methyl-2-butene-1-thiol as the skunky odorant, described as “intense, sulfuric, skunky … even in extremely dilute concentrations”; references the Oswald finding that VSCs reach maximum during curing and drop after roughly one week of storage. Full volume, issue and page numbers could not be confirmed from a cloud run and are deliberately not stated.)
  3. Bueno, J., Leuer, E., Kearney, M., Jr., Green, E. H., & Greenbaum, E. A. The preservation and augmentation of volatile terpenes in cannabis inflorescence. Journal of Cannabis Research, 2020, 2, 27. DOI: 10.1186/s42238-020-00035-z (Terpene loss during storage in various packaging conditions; argon displacement alone did not prevent terpene loss over six weeks. Contains the Ross & ElSohly 1996 baseline of approximately 31%, 45% and 55% monoterpene loss at one week, one month and three months.)
  4. ASTM International. ASTM D8197 — Standard Specification for Maintaining Acceptable Water Activity (aw) Range (0.55 to 0.65) for Dry Cannabis Flower Intended for Human/Animal Use. ASTM International, current edition. store.astm.org (Standard specifying a water activity of 0.55 to 0.65 for dry cannabis flower — the source of the 58% and 62% humidity-pack values.)
  5. Health Canada. Ozone in Indoor Air. Environmental and Workplace Health, Government of Canada. canada.ca (Explicitly advises consumers against ozone generators in the home; sets a maximum indoor ozone exposure of 20 ppb averaged over 8 hours for long-term health protection; describes coughing, chest discomfort, diminished lung capacity, breathing difficulty and eye/nose/throat irritation as documented effects, with elevated risk for people with asthma or COPD.)
  6. Cannabis Regulations (SOR/2018-144), s. 108. Immediate container. Justice Laws Website. laws-lois.justice.gc.ca (Immediate container for cannabis products must be opaque or translucent, prevent contamination, keep dried cannabis dry, have a security feature, meet the child-resistant standard in subsections C.01.001(2) to (4) of the Food and Drug Regulations, and contain no more than 30 g of dried cannabis equivalent.)
  7. Isaacson, S. E., Wilson-Poe, A. R., Ye, T., Qian, Y. L., & Shellhammer, T. H. Beyond potency: A proposed lexicon for sensory differentiation of Cannabis sativa L. aroma. PLOS ONE, 2025, 20(10), e0335125. DOI: 10.1371/journal.pone.0335125 (Trained sensory panels on 91 cannabis samples with parallel terpene and volatile-sulfur-compound analysis; reports terpinolene as the only terpene consistently associated with sensory descriptors (citrus, chemical) and finds that neither terpene nor VSC profiles alone strongly predict sensory perception.)
  8. Cannabis Act (S.C. 2018, c. 16), s. 2(1); ss. 17–18. Definition of “cannabis accessory” and rules governing accessory promotion. Justice Laws Website. laws-lois.justice.gc.ca (Accessories are “a thing … that is represented to be used in the consumption of cannabis” or its production; ss. 17–18 prohibit promotional representations that could create false impressions about the design, performance, safety or health effects of an accessory.)

This article is for informational purposes only and is not medical advice. Do not drive after using cannabis. Keep all cannabis products locked away from children and pets. Follow the cannabis laws applicable in your jurisdiction.