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Humidity Packs


Cured flower drifts out of the ideal 58-62% RH window fast once it's sealed with nothing regulating the air inside, either drying out and shedding terpenes or staying damp enough to risk mold. Humidity Packs fix that with two-way glycerin technology that both releases and absorbs moisture to hold a fixed target instead of drifting either direction. The Integra Boost 62% 8-gram and the Boveda 67-gram pack anchor this category, covering everything from a single jar to a full harvest bin.

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Buyer's Guide

Humidity Packs: Complete Guide

Lock In Terpenes Pack by Pack

A cure only holds as long as the humidity around it stays constant. Once RH drifts, terpenes start breaking down whether the flower goes too dry or too wet, so a properly rated, correctly sized pack matters as much as the cure itself did.

Two-Way Regulation, Not Guesswork

A one-way desiccant only pulls moisture out, over-drying flower the moment RH dips below target. Two-way packs correct in both directions, which is the difference between a pack that manages a cure and one that just delays a problem.

  • Salt-free glycerin formula: Plant-based glycerin packs stay spill-proof and won't leach salt residue into flower even if a pack ruptures against the bud.
  • Built-in replacement signal: Packs go stiff and crunchy once they're spent, so there's no need to guess when a swap is due.
  • Consistent RH across pack sizes: Whether it's the compact Integra Boost 8-gram or a bulk case, every pack in a given RH rating holds the same target.

Matching Pack Size and RH to the Container

Sizing runs off container volume, and RH rating runs off climate and preference — get both right and the pack does its job for months instead of weeks.

  • Small jars, high-volume operations: The Integra Boost 4-gram 600-pack suits quart jars and smaller, and the bulk count fits operations packaging many containers at once.
  • Large batches or 5-gallon totes: The Boveda 320-gram pack is built for the higher humidity demand of a full bin, where an 8-gram pack would be exhausted in days.
  • Humid climates or denser buds: A 55% rating suits growers in humid regions or working with dense, mold-prone flower, while 62% remains the standard for most cures and medium-term storage.

Getting Full Life from Every Pack

Even the right pack underperforms if the container or the habits around it work against it.

  • Seal the container fully: A pack can only hold RH in an airtight vessel — a loose-lidded jar exhausts a pack in days instead of months.
  • Rest the pack on top, not buried: Keeping the pack above the flower rather than under it avoids weight on the bud and makes swaps easier to spot and perform.
  • Match the bundle to the batch: The Boveda 1lb Fresh Bag + 67-gram pack pairs a pre-sized bag with the right pack so there's no separate sizing math for a pound-scale batch.

Looking to automate the whole curing window instead of managing packs by hand? Check out Curing Systems. For the complete category, visit Storage & Curing, browse the full Integra Boost lineup, and see Best Humidity Packs for Curing Cannabis for a deeper sizing breakdown.

Frequently Asked Questions

Should 55% or 62% humidity packs be used for curing weed?
62% is the standard for the cure itself and most storage, keeping flower pliable and terpene-rich. 55% suits humid climates, denser mold-prone buds, or a slightly drier preference for grinding into pre-rolls.
What size humidity pack fits a 1-gallon jar?
An 8-gram pack covers a large jar up to roughly one gallon. Quart jars and smaller suit a 4-gram pack, while 5-gallon buckets, totes, or turkey bags need a 67-gram pack or larger.
How long does a two-way humidity pack last?
A correctly sized pack in a properly sealed container typically lasts two to six months. Frequent openings or a poor seal shorten that significantly, since the pack keeps fighting room air.
Do humidity packs replace burping jars during the cure?
Not at the start. Freshly jarred flower still off-gasses moisture and needs scheduled openings for the first week or two. Packs take over once RH stabilizes, holding that level for the rest of the cure.
Is it safe for a humidity pack to touch flower directly?
Yes, salt-free glycerin packs are food-safe and won't transfer taste through the membrane. Resting the pack on top of the buds rather than underneath still makes swaps easier and keeps weight off the flower.
Can a spent humidity pack be recharged?
No. These packs are built for a single service life, and attempting to rehydrate a spent one won't restore its original RH calibration. A stiff or crunchy pack should simply be replaced.
What's the difference between Integra Boost and Boveda packs?
Both use two-way glycerin regulation to the same effect, differing mainly in pack sizing options and bulk packaging formats, so the choice often comes down to which sizes fit a given container lineup.
How do I know when a humidity pack needs replacing?
A spent pack turns stiff and crunchy instead of staying soft and pliable, which is a clear physical signal that it's no longer regulating RH and is due for a swap.
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