How To Store Weed Long-Term Without Losing Potency

Last edited :
Published :
Categories : BlogCannabisGrowing Cannabis

How To Store Weed Long-Term Without Losing Potency

Correct storage is an important factor of cannabis cultivation. You don’t want to see your beloved bud thrive on the plant only to ruin after harvest. So here is how to do it right.

Storing your weed can be a tricky business. Without proper storage and care, your hard earned cannabis can end up losing potency and flavour as it is ravaged by the effects of time. For the hobby grower who often ends up with more weed than they can use in a reasonable period, it is a serious concern. Fortunately, there is an answer; you just need to know how to store your cannabis correctly.

With proper precaution and care, cannabis can last six months and upwards with minimal loss in quality. The first thing you need to understand is the environmental factors that cause your weed to degenerate. These factors are humidity, temperature, light, and air.


Humidity is important as it an environmental factor in the growth of mould and mildew. Keeping the humidity correct will ensure that the contaminants that would otherwise cause mould and rot never take hold. The ideal humidity for storage is between 59% - 63%. Anything lower will reduce the risk of mould, but can also dry out your bud too much, removing essential oils.


The temperature you store your bud at is important for two reasons. Firstly, temperature also has an impact on the likelihood of mould developing. Mould thrives between 25-30 degrees Celsius, making it essential to store your bud in a cool place. Lower temperatures also slow down the degeneration of THC, and thus potency. Never freeze your bud if you intend to smoke it, even in a container. Such cold temperatures will cause the cannabinoid-containing trichomes to freeze and become brittle, making them very likely to fall off your bud.


UV light is harmful to the integrity of cannabinoids. If exposed to light for too long, harvested bud will begin to lose its potency as the THC breaks down. It just so happens that sunlight, and most forms of other light, contain UV in one form or another. Make sure that wherever you choose to store your weed, it is dark.


Air plays a couple of roles. Although your cannabis plants need a constant supply of fresh oxygen while growing, too much can speed up the degeneration process in harvested bud. Air will also have an effect on the humidity, especially if your bud has not dried out fully. As such, making sure your bud is stored somewhere airtight is a good way to go.


So what brings all of these factors together. Well, generally, the go-to solution is a glass jar with an airtight seal lid. This creates a stable, sealed environment that can be placed somewhere dark and cool. Glass is also a neutrally charged material, aiding in the preservation of the potency; conversely, something like plastic is often positively charged, meaning it can attract and pull off trichomes. In terms of keeping an eye on humidity, a hydrometer is the tool to get. These monitor the relative humidity of the air, and can give you a fairly accurate idea of the situation.

Alternatively, you could also opt to vacuum pack your bud - in the same way you can vacuum pack food. This can then be safely stored somewhere cool and dark like a pantry. The only problem with this is that the process can crush your bud a bit as the packaging compacts. But if this is not an issue for you, then there is no reason to rule out this option.

There are also many affordable and specialised commercial products ideal for the long-term storage of weed. For example, the CVault fits the bill in every way, offering a sterile, airtight, light proof solution. And considering the effort and time put into growing a personal stash, it doesn’t exactly break the bank.

Tightvac 0.57L

Other such specialised products include the Kick-It Herb Can and the Tight-Vac stash box.

At the end of the day, if you want to maintain the integrity of your bud for as long as you can, you just need a little common sense and a suitable container. It is easy to ensure your bud is as tasty and potent as the day you first harvested it. All it takes is the knowledge of what causes your weed to break down.

Related Products