Boveda 58% RH Humidity Control

B58 Cannabis KeepFresh

Rated 4.9 out of 5 stars
86 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 86 reviews
Total 5 star reviews: 84 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 1
99%would recommend this product
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86 reviews
  • CR Profile picture for Casey logo
    Casey R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago

    Loved this little packs. They are working great, put two packs in one jar with about a oz in the jar. Keeping them curing properly keeping em at a good feel and smell!

  • JS Profile picture for Jacob S. & Charles logo
    Jacob S. & Charles t.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    Great Product!

    I absolutely LOVE these little guys, they work PERFECT for my small CV Vault with twist top!

  • MP
    Matthew P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 days ago
    Best terpene protection

    Boveda is the best product to protect cannabis on the market. It preserves the aromatic qualities of the flower.

    The perfect humidity makes for a nice sticky bud, that burns well, and provides the original potency it was intended to deliver when harvested.

  • MG
    Matthew G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    Works well.

    They work. Last a pretty long time. Wish you did a slightly lower humidity one for bits I'm gonna dry herb vape. Maybe 50%.

  • TM
    TODD M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Works great!

    These are a game changer for keeping your stash at optimal humidity levels. Would recommend.

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