Stash & storage
by CVault
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The CVault storage container is a food-grade stainless steel vessel that keeps cannabis fresh, potent, and properly humidified for months. Unlike glass jars that let light degrade your terpenes and cannabinoids, the CVault blocks 100% of light while maintaining a sealed 62% relative humidity environment — the sweet spot for long-term herb storage and curing. Available in eight sizes from a pocket-friendly 0.175L up to a serious 50L bulk container, there's a CVault for every stash size from personal to commercial harvest.
The personal sizes (0.175L, 0.5L, 0.95L) are your everyday carry and countertop stash jars. The commercial sizes (2L upwards) are built for growers who need proper curing and bulk storage. Here's the full breakdown:
| Size | Category | Diameter | Height | Included Humidipak |
|---|---|---|---|---|
| 0.175L | Personal | 8 cm | 4 cm | 1x 8g Humidipak 62% |
| 0.5L | Personal | 10 cm | 6.8 cm | 1x 8g Humidipak 62% |
| 0.95L | Personal | 12 cm | 8.5 cm | 2x 8g Humidipak 62% |
| 2L | Commercial | 20 cm | 10 cm | 1x 67g Humidipak 62% |
| 4L | Commercial | 23 cm | 14 cm | 1x 67g Humidipak 62% |
| 8L | Commercial | 26 cm | 18 cm | 2x 67g Humidipak 62% |
| 21L | Commercial | 33 cm | 26 cm | 1x 320g Humidipak 62% |
| 50L | Commercial | - | - | Contact for details |
Our pick for most personal users: the 0.95L. It holds a comfortable amount without wasting space, and the two included Humidipaks give you solid humidity coverage. If you're curing a harvest, jump straight to the 21L — it handles large yields and the 320g Humidipak keeps the environment stable across that bigger volume.
We've sold mason jars, UV glass, silicone containers, and everything in between since 1999. The CVault is the storage solution we'd actually put our own stash in, and here's why.
Light is the silent killer of good cannabis. Even amber UV glass lets some wavelengths through over time, slowly breaking down THC into CBN and degrading the terpene profile that gives your strain its character. Stainless steel blocks every photon. Zero light penetration, full stop. Your herb stays as close to harvest condition as physics allows.
Then there's the humidity problem. Too dry and your trichomes turn to dust the moment you grind — harsh smoke, lost potency, and that papery taste nobody enjoys. Too humid and you're inviting mould, which means binning the lot. The CVault solves this with the included Boveda-style Humidipak, a two-way humidity control system that both absorbs excess moisture and releases it when the air inside gets too dry. It holds a steady 62% relative humidity, which is the figure most growers and connoisseurs agree is the target for stored cannabis.
The honest limitation: the CVault is heavier than a glass jar and costs more upfront. You can feel the weight of the stainless steel when you pick it up — it's a solid, chunky piece of kit, not something you'd toss in a backpack without noticing. The 0.175L is manageable for travel, but the commercial sizes are strictly stay-at-home storage. If portability matters more than preservation, a small UV glass jar might suit you better. But for keeping your herb in peak condition? The CVault is the best stash container we carry.
| Specification | Detail |
|---|---|
| Material | Food-grade stainless steel |
| Seal | Silicone gasket with latch-lock lid |
| Light protection | 100% light-proof (opaque steel construction) |
| Humidity control | Two-way Humidipak included (62% RH) |
| Available sizes | 0.175L, 0.5L, 0.95L, 2L, 4L, 8L, 21L, 50L |
| Closure type | Airtight latches (number varies by size) |
| Suitable for curing | Yes — especially 21L and 50L sizes |
| Humidipak replacement | Every 2-4 months depending on use |
The included Humidipak won't last forever — they typically need replacing every 2-4 months. Grab a replacement Humidipak in the right gram size for your CVault so you're never caught short. If you're storing freshly harvested cannabis, a digital hygrometer is worth pairing with your CVault to confirm your humidity levels during the first few days of curing.
The question we get asked most about the CVault is whether it actually makes a noticeable difference compared to a regular mason jar. Short answer: yes, and you can smell it. Open a CVault that's been sealed for a month and the terpene hit is noticeably stronger than what you'd get from the same strain stored in glass over the same period. That's the combination of zero light exposure and consistent 62% humidity doing its job.
The second most common question: "Do I really need to replace the Humidipak?" Yes. A dead Humidipak turns your CVault into just an expensive steel jar. The two-way humidity control is the entire point. We've seen customers come back after six months complaining their herb dried out — and every time, the Humidipak was rock-hard and long overdue for replacement. Budget for a couple of replacements per year and you'll never have that problem.
One thing we'd flag: the 0.5L size is oddly the one people underestimate. It sits nicely on a desk or nightstand, holds enough for a week or two of regular use, and the 10 cm diameter means it doesn't take up much space. If you're not growing your own and just want to keep your purchase fresh between trips to the shop, the 0.5L is the sweet spot.
Absolutely — that's one of its best uses. The 21L and 50L sizes are specifically suited for curing larger harvests. The two-way Humidipak maintains 62% relative humidity throughout the cure. Just remember to burp the container daily for the first couple of weeks, then taper off to every few days.
Roughly every 2-4 months with regular use. You'll know it's time when the pack feels rigid and crunchy instead of soft and pliable. In humid climates or with very frequent opening, they may need replacing sooner. Always keep a spare on hand.
When the latches are sealed and the silicone gasket is clean, the CVault is effectively airtight — meaning no odour escapes. Over time, check the gasket for debris or wear, as any gap in the seal will let scent through. A quick wipe with a damp cloth keeps it sealing properly.
The 0.5L or 0.95L covers most personal users. The 0.5L holds roughly a week or two's worth, while the 0.95L gives you more headroom and comes with two Humidipaks for better coverage. The 0.175L is a pocket-sized option for keeping a small amount fresh on the go.
Yes. The CVault is food-grade stainless steel, so it works for any herb, spice, or botanical that benefits from controlled humidity and light-proof storage. Tea, dried mushrooms, and loose herbs all store well at 62% RH. Just clean the container between different contents.
The Humidipak contains a saturated salt solution sealed in a permeable membrane. When humidity inside the CVault drops below 62%, the pack releases moisture. When it rises above 62%, the pack absorbs the excess. This two-way regulation keeps conditions stable without any manual adjustment.
The stainless steel body can handle a dishwasher cycle, but we'd recommend hand-washing to preserve the silicone gasket's lifespan. Remove the Humidipak before cleaning — it's not waterproof. A simple wash with warm soapy water and thorough drying is all you need.
Last updated: April 2026
