Boveda packs keep weed fresh by holding a steady relative humidity inside your jar, so flower stays spongy, aromatic, and slow-burning instead of crispy or damp. Instead of adding moisture blindly with peels or paper towels, a two-way pack releases or absorbs water vapor to reach a target humidity and hold it there. For stored flower, that target is 58% or 62% relative humidity.
Cannabis Storage Humidity Tips: Keep Flower at 55-62% RH
What does a Boveda pack actually do?
A Boveda pack is a saturated salt-and-water solution sealed inside a semi-permeable membrane. It works in both directions: it releases purified water vapor when the air is too dry and pulls excess moisture back in when it is too humid, keeping the container headspace at its rated humidity.
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Key Features
- Two-way humidity control that both releases and absorbs moisture
- Available in 58% and 62% relative humidity levels for flower
- Multiple sizes to match jar, tin, or bag volume
- Food-grade, plant-safe salts with no glycerin or propylene glycol
- Odorless and tasteless, so terpenes and flavor stay intact
- No activation, refilling, or maintenance required
- Works in glass jars, humidity bags, and travel containers
Materials and specs
Each pack holds food-grade salts inside a leak-resistant, semi-permeable membrane that lets only water vapor pass through. Small 4-gram packs suit a few grams of flower, while larger 8-gram, 62-gram, and bulk formats scale up to ounce and pound storage; as a general rule, one small pack conditions about an ounce of flower in a sealed jar. The pack never touches the buds directly — it conditions the air around them, so it should sit in the headspace rather than be buried. Packs hold their rated humidity for roughly two to four months in a well-sealed container before turning stiff and crunchy, which is your cue to replace them.
Does Freezing Weed Keep It Fresh?
How should you store flower with a Boveda pack?
Use an airtight glass jar kept in a cool, dark place, leave a little headspace for air movement, and add the correctly sized pack. Skip the fridge and freezer, where condensation and temperature swings undo the humidity control.
Which humidity level is right, 58% or 62%?
Choose 62% for flower you plan to smoke soon or want at its softest, and 58% for longer storage or vaping, since slightly drier flower grinds and burns more evenly.
Shipping and returns
Orders ship discreetly in plain packaging, with packs sealed so they arrive at full strength and the correct humidity level. If a pack arrives damaged or you receive the wrong level, contact support for a replacement or refund under our standard returns window.