Boveda 58% RH Humidity Control

B58 Cannabis KeepFresh

Rated 4.9 out of 5 stars
93 Reviews
Starting at $14.99


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Store your stash with a B58 Cannabis KeepFresh for potent, aromatic buds you plan to grind for a smooth, flavorful smoke.




To ensure zero gap in your 2-way humidity control, replace your Boveda every 3 months. Order replacement packs BEFORE Boveda is rigid all the way through to avoid a lapse in humidity protection in your cannabis container. 

Boveda is still working if you feel:

  • Hardening at its corners
  • Soft spots among some hard areas

Boveda is expired if:

  • The entire pack feels rock solid all the way through


Boveda is safe to touch cannabis.

First, remove a Boveda pack from the resealable bag, making sure to reseal the bag afterward. Then simply place the pack in your cannabis container. Seal your container closed to ensure it's airtight. That's it!

Do not mix Boveda RH levels within the same container, and do not use Boveda in the same container with other humidification products. They will counteract each other and reduce the efficiency of the Boveda.


Size 4: 2"/5.08 cm x 2"/5.08 cm  Size 8: 2.75"/6.985 cm x 2.5"/6.35 cm Size 67: 3.5"/8.89 cm x 5.25"/13.335 cm Size 320: 5"/12.7 cm x 6.75"/17.145 cm x .81"/2.06 cm


In an airtight container: 2 to 4 months (or less,  depending on the moisture content of the flower, how frequently the container is opened, and the storage conditions) Unopened package: Up to 2 years


In an airtight environment, all Boveda are accurate to +/-2% on the RH printed on the pack.


Food-grade salt, purified water, and a food-grade thickening agent.

Our Customers Say

Rated 4.9 out of 5 stars
Based on 93 reviews
Total 5 star reviews: 90 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
99%would recommend this product
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93 reviews
  • RF
    Rob F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    What can I say

    Absolutely fantastic product that was sent out in a timely manner. Arrived in two days after purchasing the subscription. To me the subscription is a must have for those who like to buy a lot and have different opinions. This’ll keep it fresh and bring those who’s more dryer than usual back to life!

  • RW
    Rusty W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    I only trust boveda

    Have used these for years n years love em . Have used other brands but wasn’t as happy as I am with boveda if u don’t know what u like as far as humidity in ya weed then test n see to each there own I recently went with less humidity to see how I feel bout it . But I trust this product to be safe and have had no health issues nor has my stash .

  • JJ
    Jim J.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    A must!

    Use these every year when I harvest. No brainer.

  • CP Profile picture for Chris P.
    Chris P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    The best

    The best on the market hands down!

  • RS
    Richard s.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    9 months ago
    Mason jars

    I think the packets work. After curing is when I put in jars. I usually put an OZ in a QT jar.

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