Boveda 2-Way Humidity Packs 62% – 67g

The Boveda 2-Way Humidity Pack 62% – 67g is the standard-size humidity control pack for growers who want to maintain a precise 62% relative humidity inside sealed storage containers holding up to one pound of cannabis. Drop it in, seal the container, and Boveda’s patented salt-solution technology takes over — adding moisture when the air inside dries out and absorbing moisture when it climbs too high. No activation, no calibration, no maintenance required.

Boveda 2-Way Humidity Pack Specifications

The Size 67 pack is Boveda’s most widely used format for whole-flower cannabis storage. All values below are sourced from Boveda’s official product documentation and the supplier’s verified listing.

Specification	Value
Brand	Boveda
Model / Size	Size 67 (67 g pack weight)
Supplier SKU	MB62-67-OWC-single
Boveda SKU	B62-67-OWB-C
RH Level	62%
Accuracy	±2% RH in an airtight container
Pack Dimensions	3.5 in × 5.25 in (8.89 cm × 13.34 cm)
Pack Weight	67 g (0.1477 lb with packaging)
Rated Capacity	Up to 1 lb (453 g) of cannabis per pack
Active Lifespan	2–4 months (varies by container seal quality and frequency of opening)
Unopened Shelf Life	Up to 2 years in sealed overwrap
Ingredients	Food-grade salt, purified water, food-grade thickening agent
Replacement Indicator	Pack turns rigid when solution is depleted
Sold As	Single pack

Why Choose Boveda 62% Humidity Packs

Humidity control during cannabis storage is one of those problems that looks simple until you watch a month’s worth of carefully cured flower lose its terpene profile because the jar sat through a seasonal humidity swing. Boveda’s two-way salt-solution technology was designed specifically to prevent that outcome, and the Size 67 pack at 62% RH is built for growers who want a precise target that keeps flower moist and aromatic without pushing it into mold territory.

• Two-way control, not one-way humidification. Most passive humidification products — terracotta discs, sponges, and single-direction gel packs — only add moisture. When ambient humidity climbs above the target, they cannot respond. Boveda’s semipermeable membrane works in both directions: the food-grade salt solution absorbs moisture from the container air when RH rises above 62%, and releases purified water vapor when RH drops below 62%. The result is a stable equilibrium rather than a drifting average.
• Accuracy within ±2% RH in a sealed container. Boveda specifies its accuracy at ±2% RH in an airtight environment. That means a 62% pack will maintain the container between approximately 60% and 64% RH under normal storage conditions. This is sufficient precision to prevent the desiccation that destroys trichome heads and the excess moisture that invites mold.
• Zero activation and zero maintenance. Remove the pack from its overwrap, place it in an airtight container alongside your stored material, and seal the lid. No soaking, no calibration, no external hygrometer required during the lifespan of the pack. The chemistry is self-regulating from the moment the pack is exposed to the container’s air.
• Food-grade ingredients only. The active solution is food-grade salt dissolved in purified water, thickened with a food-grade agent and sealed in a semipermeable membrane. No propylene glycol, no synthetic chemical humectants. This matters in a storage environment where the material inside the container is sensitive to contamination and off-aromas.
• Clear end-of-life indicator. When the salt solution is fully depleted, the pack transitions from flexible to rigid. You can feel the difference immediately when you pick it up. This physical indicator eliminates the guesswork of trying to gauge remaining capacity through a visual reading or a secondary hygrometer check.
• Long unopened shelf life. Each pack maintains full potency for up to two years in its sealed overwrap. Buying in small quantities and storing extras in the original packaging is practical because the packs do not degrade on the shelf before you need them.
• Rated for large containers. The Size 67 is Boveda’s standard choice for containers holding up to one pound of cannabis — suitable for quart-sized mason jars, CVault stainless containers, mylar bags, and airtight canisters in that capacity range.

Best Uses for Boveda 62% – Size 67

The 62% RH level and Size 67 weight make this pack the right choice in several specific storage contexts. Understanding where it performs best — and where a different RH level or size might be more appropriate — helps you get the most from each pack.

• Long-term whole-flower cannabis storage. After the initial cure is complete and the flower has reached its target moisture content, the Boveda 62% pack keeps it there. For growers storing flower for six to twelve weeks or longer, two-way humidity control prevents the gradual drying that degrades terpene volatility and trichome fragility over time. Place one Size 67 pack in a sealed jar or CVault containing up to one pound of cured flower and replace when the pack turns rigid.
• Dry climate and high-altitude environments. Boveda explicitly recommends the 62% level for growers in dry climates or at high altitudes where ambient relative humidity regularly falls below 50%. In those conditions, a 58% pack may actually drive moisture below the optimal range for sticky, aromatic flower. The 62% target provides a meaningful buffer above ambient, maintaining adequate moisture content even when the container is opened briefly in very low-RH rooms.
• Reviving slightly over-dried flower. If flower has been stored without a humidity pack and has dried out beyond the ideal range, the Boveda 62% pack will rehydrate it back toward 62% RH. This process is gradual — allow 24 to 72 hours for the pack to equilibrate a full container of dry flower. The two-way mechanism absorbs the transferred moisture to prevent overshooting the target.
• Preference for moister, stickier texture. Boveda distinguishes its 58% and 62% products as “dried cannabis” and “moist cannabis” targets respectively. Growers and consumers who prefer a stickier feel and a slightly softer texture should choose 62% over 58%. The difference in practice is a few percentage points of moisture content that noticeably affects how the flower feels when handled and how it burns.
• Quart jars, CVaults, and airtight canisters up to one pound. Size 67 is calibrated for containers in the half-pound to one-pound capacity range. For smaller containers (an eighth to a quarter ounce), a Size 8 pack is sufficient. For very large storage containers, pair this pack with a Boveda 62% – 320g Size 320 pack, which is rated for larger bulk quantities. Do not mix RH levels (58% and 62%) in the same container, as they will work against each other and reach an equilibrium between the two targets.
• Dispensary display cases and sample jars. In a retail or dispensary environment, flower in display jars is subject to repeated brief openings throughout the day. Each opening allows dry ambient air to enter and displace humid air from inside the jar. A Boveda 62% pack compensates for these frequent exchanges, keeping display flower at a consistent moisture level and presentation quality.

Boveda 62% vs Integra Boost 62% – Size 67

Integra Boost (by Desiccare) is Boveda’s most direct head-to-head competitor in the two-way humidity pack market. Both products use salt-solution chemistry to maintain 62% RH in airtight containers. The differences come down to lifespan, price, indicator design, and how each product affects the sensory characteristics of stored material.

Active lifespan: Boveda rates the Size 67 at 2–4 months of active use depending on container seal quality and opening frequency. Integra Boost users frequently report a longer effective life — estimates commonly range from 4 to 6 months per pack under similar conditions. Whether this difference reflects a higher initial solution volume, a different membrane permeability, or simply different user habits is not definitively documented, but it is a recurring observation across grower communities. A longer per-pack life can offset the difference in unit price for users buying packs frequently.

Unit price: Integra Boost packs are typically priced approximately 15–20% below comparable Boveda packs. If lifespan is equivalent or longer, the total cost-per-unit-time of ownership tilts further in Integra’s favor on a pure economics basis. However, users who value the Boveda brand’s longer track record, broader third-party testing documentation, and more extensive product range (multiple RH levels, multiple sizes) often continue with Boveda despite the price difference.

Replacement indicator: Integra Boost includes a color-changing replacement indicator card inside the packaging. The card changes color to signal when the pack is nearing end of life, providing a visual warning before the pack is fully depleted. Boveda’s indicator is tactile: the pack turns rigid when the solution is exhausted. Neither approach is strictly superior — the Boveda rigid-pack indicator is simpler and impossible to misread, while the Integra card provides advance warning that can prompt a proactive pack swap before quality is affected.

Effect on aroma: Some experienced users report that Boveda packs subtly affect the natural aroma of stored cannabis over extended storage periods — a mild, slightly medicinal undertone attributed to the thickening agent in the salt solution. Integra Boost users report less noticeable aroma transfer. This observation is anecdotal and not confirmed by controlled testing, but it appears consistently enough in grower discussions to be worth noting. If aroma preservation is the highest priority and long-term storage exceeds two months, it is worth comparing both products side by side with your specific cultivar.

Speed to equilibrium: Boveda packs are commonly reported to reach their target RH within a container slightly faster than Integra Boost — typically within hours versus Integra’s reported one-day adjustment period. For users who are actively cycling containers or rotating stock frequently, faster equilibration may reduce the exposure time during which flower is outside the target humidity range.

Summary: Boveda 62% is the established standard with the longest history of third-party documentation, the simplest replacement indicator, and a faster equilibration speed. Integra Boost 62% offers a potentially longer per-pack lifespan, a lower unit price, and a visual advance-warning indicator. Both products achieve the same fundamental goal. Choose Boveda if you value its track record and simplicity; consider Integra if cost and per-pack lifespan are the deciding factors.

Compatibility & Operating Range

The Boveda Size 67 pack is compatible with any airtight storage container rated for food or herb storage. The following notes address the most common compatibility questions for indoor gardeners and cannabis storage applications.

Container compatibility: The pack works in any container that can be sealed airtight. Common choices include glass mason jars (wide-mouth quart jars are ideal for one-pound quantities), CVault stainless steel containers, Miron UV-blocking glass jars, airtight polypropylene canisters, and resealable mylar bags with airtight zip closures. Containers that are not fully airtight — cloth bags, standard zip-lock bags, or loosely lidded jars — allow moisture to exchange continuously with the ambient environment. In those containers, the Boveda pack will deplete much faster and may not be able to overcome a large humidity differential between the container interior and the surrounding room.

Quantity per container: One Size 67 pack is rated for up to one pound (453 g) of cannabis in a sealed container. For containers holding less than half a pound, a Size 8 pack (8 g) provides sufficient humidity capacity and takes up less physical space inside the container. For containers holding more than one pound, use multiple Size 67 packs or upgrade to a Boveda 62% Size 320 pack designed for bulk quantities. Boveda provides a sizing guide on its website, but the general rule is one gram of Boveda capacity per gram of cannabis as a starting estimate for a tightly sealed container.

Do not mix RH levels in the same container. If a container holds both a 58% and a 62% Boveda pack, the two packs will reach an equilibrium between their respective targets and neither will perform as specified. Always use a single RH level per container.

Temperature range: Boveda packs are designed for typical indoor storage temperatures — approximately 60°F to 77°F (15°C to 25°C). Extreme heat above 85°F (29°C) can accelerate the depletion of the salt solution and shorten active lifespan. Cold temperatures slow the equilibration process but do not damage the pack. For long-term storage, a cool, dark location at stable room temperature is optimal.

Integration with grow-room climate tools: Boveda packs are a post-harvest storage solution, not a grow-room humidity control device. They are not designed to regulate ambient humidity in an open growing space. For active climate management during the grow cycle, a dedicated dehumidifier or humidifier is required. The Ideal Air Pro Series Dehumidifier condensate pump is one example of the type of equipment used for grow-room humidity management, which operates at a fundamentally different scale and mechanism than Boveda’s container-level solution. Boveda packs take over after harvest — during the cure and throughout storage — when precise, contained humidity control becomes the priority.

Compatibility with other humidity accessories: Do not use Boveda packs alongside other humidity control products (terracotta stones, silica gel packs, or gel humidors) in the same container. Other products may work against the Boveda pack’s equilibrium, cause faster-than-expected depletion, or introduce contamination from non-food-grade materials. Boveda packs are designed to be the sole humidity source in a sealed container.

Usage Guidelines

Getting the most from each Boveda pack requires attention to container selection, pack condition before use, and ongoing monitoring. The following guidelines address the most common user questions.

Start with properly cured flower. Boveda packs are a storage tool, not a curing tool. If freshly harvested flower is placed in a sealed container before the initial cure is complete, the excess moisture in the plant material will overwhelm the pack’s absorption capacity and the container will remain too humid. Allow flower to complete the initial open-air or burping phase of the cure before sealing it with a Boveda pack. The pack’s job is to maintain a stable RH during long-term sealed storage after curing, not to manage the large moisture release of freshly dried plant material.

Inspect the pack before use. Each Boveda pack ships in a sealed individual overwrap. Before opening, confirm the overwrap is intact and the pack is flexible (not rigid). A rigid pack inside a sealed overwrap indicates the pack was stored in an extreme environment or the overwrap was damaged at some point. A flexible, pliable pack is full and ready to use.

Use an airtight container. The performance of a Boveda pack is directly tied to the airtightness of the container. A container with a degraded rubber gasket, a cracked lid, or a loose-fitting seal forces the pack to work constantly against the ambient environment rather than maintaining a stable interior equilibrium. Check container seals before each use, particularly for mason jars with older lids and canisters that have been cycled many times.

Monitor pack flexibility over time. Periodically feel the pack when you open the container. A pack that is still soft and slightly pliable has remaining capacity. A pack that has become noticeably stiffer or partially rigid is approaching end of life. A fully rigid pack is depleted and should be replaced. Most users replace packs proactively when they become noticeably stiff rather than waiting for complete rigidity.

Replace promptly when depleted. A depleted pack in a sealed container is not neutral — a rigid, exhausted pack is composed of dry solid salt and will begin to act as a mild desiccant, pulling moisture from the container air rather than releasing it. Replace the pack as soon as it turns fully rigid to avoid inadvertently drying out the stored material.

Do not recharge or rehydrate depleted packs. Some users attempt to rehydrate rigid Boveda packs by soaking them in water. This is not recommended and not supported by Boveda. The chemistry of the salt solution changes as it depletes, and a recharged pack will not perform at the specified RH level. Dispose of depleted packs and start fresh with a new one.

Store unused packs in their sealed overwrap. If you purchase packs in bulk, store extras in the original sealed overwrap in a cool, dry location away from direct sunlight. Each pack retains full capacity for up to two years in its sealed overwrap. Once the overwrap is removed, the pack begins equilibrating with whatever environment it is placed in and should be put into use immediately.

How to Use Boveda Humidity Packs

Using a Boveda pack correctly takes fewer than thirty seconds. The process is intentionally simple, but a few specific steps make a meaningful difference in how long each pack lasts and how consistently it performs.

1. Confirm your container is airtight before adding the pack. Fill the container with your stored material and close the lid. If you can hear air escaping when you squeeze the container gently, the seal is not airtight. A leaky container will cause the pack to deplete in days or weeks rather than months because it must continuously compensate for the ambient environment, not just the sealed interior. Replace gaskets or switch containers before proceeding.
2. Remove the Boveda pack from its sealed overwrap. Tear or cut the thin film overwrap at the notch or edge and remove the pack. The pack inside is a sealed paper-like pouch containing the salt solution. You do not open or modify the pack itself — the semipermeable membrane is the outer layer of the pack, and it works through the intact paper surface.
3. Place the pack directly in the container with your stored material. Lay the pack on top of or alongside the stored material. Direct contact with the flower is fine and will not cause any staining, moisture spotting, or contamination because the solution is sealed inside the membrane. If you prefer to keep the pack separate, place it in a small mesh pouch or on a small shelf divider inside the container.
4. Seal the container immediately. Close the lid and engage any latches or clips. The faster the container is sealed after opening, the less ambient air enters and the faster the pack reaches its equilibrium RH inside the container. In very dry environments (below 30% ambient RH), the pack may take 12 to 24 hours to fully stabilize the container at 62% RH if the stored material is already quite dry.
5. Allow 24 hours before checking with a hygrometer. If you are using an external hygrometer probe or a digital hygrometer with a sensor placed inside the container, give the pack 24 hours to stabilize the interior RH before evaluating its performance. Readings taken within the first few hours may not reflect the steady-state equilibrium, particularly if the stored material was dry and is absorbing moisture from the pack.
6. Monitor the pack every time you open the container. Each time you open the container to access stored material, briefly feel the pack. This takes one second and gives you an ongoing sense of where the pack is in its lifespan. No separate tracking tool or reminder is needed because the pack’s texture tells you its status directly.
7. Replace the pack when it turns rigid. Discard the depleted pack and immediately replace it with a fresh one, following the same steps from step 2. There is no grace period between depleted pack removal and fresh pack insertion — the container should always have an active pack if the stored material will remain sealed for any extended period.

Sources & Further Reading