The Four Enemies of Cannabis
- Heat — accelerates cannabinoid degradation (THC converts to CBN)
- Light — UV destroys cannabinoids faster than any other factor
- Air (oxygen) — oxidizes THC and evaporates terpenes
- Humidity — too dry and flower becomes harsh and loses terps; too wet and it molds
The Gold Standard: Sealed Glass + Humidity Pack + Dark + Cool
Container
Glass mason jars are the standard. Small jars for current stash (less air), larger jars for long-term storage. Avoid plastic baggies (static attracts trichomes off the bud, off-gasses), metal containers (affects flavor), and decorative jars with rubber gaskets that don't seal tight.
UV-tinted glass (amber or dark violet) is better than clear. If you only have clear jars, store them in a drawer or cupboard.
Humidity Packs
Boveda 62% is the standard for flower. These small pouches absorb or release moisture to maintain a constant relative humidity inside the jar. One 8g pack per ounce of flower. Replace every 2–4 months, or when the pack gets hard.
Flower stored at 62% RH stays pliable, aromatic, and smokes smooth. At 50% RH, flower gets brittle and harsh. At 70%+, mold risk becomes real.
Temperature
Target: below 70°F (21°C). Room temperature is fine; a cupboard away from direct sunlight is ideal. Do not refrigerate flower (humidity cycles during door opening destroy trichomes). Do not freeze unless you're planning to make hash — freezing makes trichomes brittle and they fall off when handled.
Location
Dark. Cool. Stable. A bedroom closet on an interior wall beats a garage or kitchen cabinet near the stove.
How Long Will Properly-Stored Flower Last?
- 0–3 months: peak quality
- 3–6 months: minor terpene loss, THC still strong
- 6–12 months: noticeable terpene loss, flower still smokable and strong
- 12+ months: THC starts converting to CBN (more sedating), terps are mostly gone, but it's still usable
Concentrates Storage
Live resin, rosin, and other concentrates degrade faster than flower. Store in silicone containers or parchment-lined glass, in a cool dark place. For batches you're not using within a month, the refrigerator (in an airtight secondary container to prevent condensation) is acceptable.
Edibles Storage
Follow the "use by" date on the package. Gummies should be airtight at room temp; chocolates in a cool spot away from heat. Never freeze gummies — texture ruined.
Vape Carts
Upright, cap on, mouthpiece down is fine. Avoid hot cars (the thinner oil can leak past the coil). Below 80°F is the comfort zone.
Signs Your Weed Has Gone Bad
- White/grey fuzz on the bud — mold, discard the entire jar
- Musty / mildew smell — likely mold, discard
- Crumbles to dust when squeezed — over-dry, still smokable but harsh (rehydrate with a 62% Boveda and give it 48 hours)
- No smell — terpenes are fully gone; still psychoactive but flavorless
🚫 When in doubt, throw it out. Mold on cannabis is a real health risk — especially for immunocompromised people. No cost savings is worth a lung infection.
Pro Storage Setup (Under $50)
- Three 4-oz UV-tinted glass jars — $15
- Four Boveda 62% 8g packs — $10
- Label maker or masking tape + Sharpie — $5
- A simple lockable storage box for privacy + pet/child safety — $20