Cannabis is a plant product, and like any herb it degrades over time. Store it well and flower can stay good for 6–12 months or more. Store it badly and it dries out, loses potency, and tastes harsh in weeks.

The four enemies of fresh cannabis

Light — UV breaks down cannabinoids. Keep it dark.
Air — oxygen degrades THC. Keep it airtight.
Heat — dries and damages trichomes. Keep it cool.
Humidity swings — too dry is harsh; too damp risks mold.

Ideal storage conditions

Temperature: cool room temperature, around 60–70°F (15–21°C).
Humidity: 55–62% relative humidity is the sweet spot.
Container: an airtight glass jar (like a mason jar) is ideal.

Use humidity packs

Two-way humidity packs (such as 62% packs) sit in your jar and hold humidity steady — the easiest way to keep flower from drying out.

Storage mistakes to avoid

The freezer: frozen trichomes get brittle and snap off.
Plastic baggies: they build static and let in air.
On a sunny windowsill or near appliances: heat and light.
The grinder: only grind what you’ll use soon.

Storing other products

Keep edibles in their original packaging, away from kids and pets. Store carts upright in a cool place. Concentrates do best cool and in non-stick silicone or parchment.

Starting fresh? Find a dispensary near you and pick up a jar and humidity pack while you’re there.