Does a Cannabis Humidor Need Seasoning? Guide

Short answer

Yes. A cannabis humidor made of Spanish cedar needs seasoning. Seasoning adds water to the wood. Unseasoned cedar pulls moisture from cannabis buds. Buds lose terpenes, flavor, and weight. Skip seasoning and flower dries in days.

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Why seasoning matters

Spanish cedar is hygroscopic. It absorbs and releases water vapor. Dry wood steals water from flower. The target relative humidity for cannabis is 58% to 62%. An unseasoned humidor cannot hold that range. The wood acts like a sponge until it reaches equilibrium with the air.

Cannabis Humidor Wood Types: Spanish Cedar, Mahogany, and What to Avoid

How to season a humidor

1. Wipe the interior with distilled water. Do not soak the wood.
2. Place a small cup of distilled water inside the humidor.
3. Close the lid. Keep the humidor at 65°F to 70°F.
4. Wait 24 hours. Check the hygrometer.
5. If relative humidity is below 70%, repeat steps 1 and 2.
6. When relative humidity holds at 70% for 24 hours, remove the water cup.
7. Let the humidor sit open for 1 hour. Then close it. Wait until relative humidity drops to 62%.
8. Add cannabis. Use a Boveda 62% pack or Integra Boost 62% pack to maintain humidity.

How long seasoning takes

Most desktop humidors season in 24 to 72 hours. Some need up to 5 days. Large cabinet humidors take 1 to 2 weeks. Seasoning time depends on wood thickness, room humidity, and temperature. A hygrometer is required. Calibrate the hygrometer with a salt test before you start.

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Signs a humidor needs seasoning

• Hygrometer reads below 60% relative humidity.
• Wood feels dry or rough.
• Cedar aroma is weak.
• Cannabis buds dry out in 2 days or less.
• Boveda pack becomes stiff in under 1 week.

When you do not need seasoning

Airtight glass jars, stainless steel containers, and plastic bins do not need seasoning. They have no wood. Boveda packs and Integra Boost packs control humidity without seasoning. Do not season a humidor for concentrates or edibles. Seasoning is only for porous wood that will hold flower.

Common mistakes

• Over-wetting the wood. This causes mold and warping.
• Using tap water. Minerals clog wood pores.
• Skipping hygrometer calibration. You get false readings.
• Adding cannabis before relative humidity stabilizes at 62%.

After seasoning

Re-season every 3 to 6 months. Re-season when relative humidity drops below 58%. Keep the humidor out of sunlight. Store at 65°F to 70°F. Replace Boveda or Integra packs when they become stiff or dry.