
Stash & storage
by Tightvac
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The Stashbox Tightvac 0.29L is a compact, vacuum-sealed container that keeps your herb fresh, dry, and discreet. Built by TightVac (model TV2), this 0.29-litre stashbox fits in your palm and creates a partial vacuum seal every time you press the lid down — locking out air, moisture, and odour. Toss it in your bag, your jacket pocket, or your desk drawer. Your herb stays exactly as it should: fresh and ready when you are.
| Spec | Value |
|---|---|
| Brand | TightVac |
| Model | TV2 |
| Capacity | 0.29 litres (3 oz / approx 8 grams of dried herb) |
| Material | BPA-free polypropylene |
| Seal type | Push-down partial vacuum |
| Smell-proof | Yes |
| Colour | Black |
| SKU | HS1416 |
Complete your stash setup — pair the Tightvac with a decent grinder like the SLX Non-Stick Grinder or an Integra Boost humidity pack to keep your herb at the right moisture level inside the container. The Boost packs slot right in alongside your herb and maintain a steady 62% relative humidity, which is the sweet spot for long-term freshness.
Here's what actually happens to herb stored in a sandwich bag or an old tobacco tin: it dries out. Within 48 hours, trichomes start to degrade, terpenes evaporate, and you're left smoking something that tastes like cardboard and hits like wet newspaper. We've had customers bring in herb that looked fine but had been sitting in a zip-lock for a fortnight — bone dry, zero flavour. That's not a storage solution. That's a slow funeral for your stash.
The Tightvac solves this with a dead-simple mechanism. You press the lid down, it pushes air out, and a one-way valve holds the partial vacuum. No latches, no screw threads, no fiddly clasps. Just push and done. The polypropylene body is BPA-free, doesn't leach chemicals, and won't crack if you drop it on concrete — we've tested this more times than we'd like to admit. It's not indestructible, but it'll survive the bottom of a rucksack, a festival, or a clumsy morning.
The honest limitation: at 0.29 litres, this is a carry-around container, not a long-term storage vault. It holds roughly 8 grams of ground herb, give or take depending on density. If you're looking to store an ounce or more, step up to the Tightvac 1.3L or the Kilovac range. But for daily carry — grabbing what you need for the day and heading out — the TV2 is the one we'd pick. It's lighter than a phone, fits in a jacket pocket, and genuinely does not smell. We've walked past sniffer dogs at festivals with one of these. No drama.
We've been stocking TightVac containers since the early 2000s, and the TV2 outsells every other size by a wide margin. The reason is simple: people want something they can carry without thinking about. The 0.29L version weighs next to nothing — pick it up and it feels like an empty pill bottle. The walls are about 2mm thick polypropylene, which gives it a solid, slightly rigid feel without being bulky. Tap it with your fingernail and you get a clean, dense sound — not the hollow rattle of cheap plastic.
One thing to watch out for: the black body is opaque, so you can't see how much you've got left without opening it. If that bothers you, TightVac also makes a clear-body version. But the black does keep light out, which is better for terpene preservation over time — UV light degrades cannabinoids and terpenes faster than most people realise. Direct sunlight for a week can reduce terpene content noticeably. The black TV2 sidesteps that entirely.
Yes. The push-down vacuum seal and one-way valve trap odour inside the container. We've carried these around the shop floor filled with strong-smelling herb and had no complaints from the neighbours. It's not lab-grade hermetic, but for everyday carry it blocks smell completely.
Roughly 8 grams of loosely ground herb, or about 5-6 grams of dense nugs. Leave a centimetre of space at the top so the vacuum mechanism can work properly. Packing it completely full weakens the seal.
Absolutely. The BPA-free polypropylene is food-safe. People use them for coffee beans, loose-leaf tea, spices, vitamins — anything that degrades with air exposure. The 0.29L size is popular for carrying daily supplements too.
Noticeably longer than in a bag or tin. With the partial vacuum reducing oxygen exposure, herb stays fresh for weeks rather than days. Pair it with a 62% Integra Boost humidity pack and you can stretch that to months without noticeable quality loss.
The valve mechanism is rated for thousands of open-close cycles. After a year or two of daily use, some customers report the seal feeling slightly less tight. A quick wash of the lid and valve area usually restores it. TightVac also sells replacement lids if needed.
The Minivac is smaller — about 0.12L, good for a gram or two. The 0.29L TV2 is the step up: enough for a day's worth of herb with room for a humidity pack. If you're choosing between the two, the TV2 is more practical for daily use. The Minivac works better as a single-session carry.
TightVac recommends hand washing with warm water and mild soap. The polypropylene can handle heat, but the valve mechanism in the lid may warp or degrade in a dishwasher's high-temperature cycle. Hand wash, air dry, sorted.
Last updated: April 2026