Quick answer
The best humidity pack for weed is a two-way pack at 58% or 62% RH, sized to the weight of flower in the jar. Two-way matters most: it adds moisture when the jar is dry and removes it when the jar is humid. After that, check what is inside the pack, whether it can leak, how you know it is spent, and what it costs per jar.
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Any 2 boxes save 10%, and U.S. orders of $40 or more ship free. Check out with 2 boxes of 20 × 8 g
Search for humidity packs and you get a wall of near-identical pouches. They are not all the same inside, and the differences decide whether your jar stays where you want it. Use these seven checks before you buy.
1. Two-way, not one-way
A one-way humidifier, such as a soaked stone or a damp sponge, only adds moisture. It has no stopping point. A two-way pack is built around a target and works in both directions. For storing flower, two-way is the only kind worth buying. Here is what goes wrong with the one-way options: DIY humidity packs, rated.
2. The right number: 58% or 62%
Dry cannabis flower is stored at about 55 to 65% RH. Packs for cannabis come at 58% and 62%. Higher numbers such as 69% and 72% are made for cigars and are too humid for flower. If you are unsure which of the two suits you, read 58% vs 62%.
3. Sizes that match your jars
A pack is sized by the weight of flower it looks after. A brand that only sells one or two sizes will leave you over or under on most jars. Look for a range that covers an eighth up to an ounce at least.
4. What is inside the pack
There are two main designs. One holds a liquid or gel solution inside a membrane. The other holds the moisture in a dry sheet of fiber. Both can hold a humidity level. The practical difference shows up if a pack is punctured or squashed in a full jar: a liquid or gel fill can end up on the flower, a dry fiber sheet has nothing to spill.
5. A stated tolerance
A pack labeled 62% should tell you how close it holds to that number. Look for a tolerance on the pack or the product page. Humidi-Cure states 62% RH with a tolerance of ±2%.
6. A clear way to know it is spent
Every pack runs out. You should be able to tell when without guessing. Check how the maker tells you to judge it, and keep an indicator card or a small hygrometer in at least one jar. More here: when to replace a humidity pack.
7. Cost per jar, not per box
Divide the box price by the number of packs, then match it to your jars. A 20-pack of 8 g packs works out to about $1.40 for each ounce jar. Small packs for eighths cost less per pack. Buying one larger box usually beats several small ones.
The checklist
| Check | What to look for | Humidi-Cure 62% |
|---|---|---|
| Direction | Two-way | Two-way |
| Humidity level | 58% or 62% for cannabis | 62% RH |
| Tolerance | Stated | ±2% |
| Sizes | An eighth to an ounce or more | 1.5 g, 3 g, 4 g, 8 g, 63 g |
| Inside | Nothing that can spill | Plant-fiber core, no liquid or gel |
| Cost per ounce jar | Work it out per pack | About $1.40 in the 20-pack |
Try it on your next jar
Humidi-Cure 62% packs come in sizes for an eighth up to an ounce, in boxes of 10 or 20.
Get 20 × 8 g packsSee all sizes
Any 2 boxes save 10%, and U.S. orders of $40 or more ship free.
Frequently asked questions
What is the best humidity pack for weed?
A two-way pack at 58% or 62% RH, sized to the weight of flower in the jar, with a stated tolerance and nothing inside that can leak onto the flower.
Are humidity packs worth it for weed?
If you keep flower for more than a couple of weeks, open the jar often, or live somewhere dry, yes. A pack costs little next to the flower it protects.
Can I use a cigar humidity pack for weed?
No. Cigar packs are usually 65% to 72% or higher, which is too humid for cannabis flower.
How do I use one once I have it?
Remove the outer wrapper, put the pack in an airtight jar with the flower and close the lid. Step by step: how to use a humidity pack for weed.
Buying for a dispensary, a cultivation site or a brand? See wholesale and custom-printed packs.
