Curing and Storing Cannabis Properly (And Fixing It When It Goes Wrong)

Since growing your own became legal back in 2018, a lot of South Africans have been curing cannabis for the first time in their lives, usually in a spare room or a garage, usually with no real idea what they're doing yet. Fair enough, nobody's born knowing this. Here's the whole process, plus what to do when it goes too dry or too wet, because both happen constantly and neither one means you've ruined anything.

Worth knowing upfront too, this genuinely depends on where in the country you're doing it. Cure in Durban in summer and you'll be opening those jars constantly, because the air is already doing half the moisture work against you. Cure through a Joburg winter and you'll barely need to touch them, the dry Highveld air pulls moisture out fast enough on its own.

Curing Isn't the Same as Drying

Drying is the first, rougher step, hanging freshly harvested branches somewhere dark and airy for about a week to ten days until the outside of the buds feels dry to the touch. Curing is what happens after that, a slower, more controlled process where the moisture still trapped deeper inside the bud equalises outward, and chlorophyll and other plant compounds break down.

Skip curing and go straight from dried to stored, and you'll notice it. Uncured buds tend to smoke harsh, taste grassy or hay like, and burn less evenly. Properly cured buds smoke smoother, taste closer to what the strain is actually meant to taste like, and hold onto more of their terpene profile in the process. Full detail on what terpenes actually do in [Cannabis Terpenes: The Real Reason Strains Feel Different].

How to Actually Cure It

Once buds are dry on the outside, load them into glass jars, filled to around three quarters full, not packed tight. Airtight lids, out of direct light.

For the first week or two, open the jars, or burp them, for a few minutes, a couple of times a day. This lets built up moisture and gas escape before it turns into a mould problem, while still leaving enough humidity inside for the curing process to keep working. You'll notice a slightly ammonia-like or grassy smell early on that fades as curing progresses, that's normal.

Taper the burping down over the following couple of weeks as things stabilise, moving to once a day, then every few days. Most people call it properly cured somewhere around three to four weeks in, though plenty of enthusiasts keep going for months, since flavour keeps mellowing the longer it sits.

Check texture at every burp. Buds should feel dry on the outside but still have a slight give, not crackly dry, not spongy wet. That balance is the entire goal of the process.

Once It's Cured, Storing It Properly

The short version, since the full breakdown lives in [How to Store Cannabis Properly]. Airtight glass, not plastic. Somewhere cool, dark and temperature stable, not a fridge, despite how tempting that seems. A two way humidity pack sitting around 58 to 62% relative humidity takes most of the guesswork out of long term storage, correcting gently in either direction rather than just soaking up moisture until it gives up.

If It Comes Out Too Dry

Crumbles to dust instead of breaking apart cleanly, barely any smell left, burns fast and harsh. This usually means it dried too long before curing started, or sat in overly dry air, very possible on the Highveld, without a humidity pack doing damage control.

The fix is a two way humidity pack in a sealed jar for a day or two, which brings texture back without overshooting. Full walkthrough, including the citrus peel trick and what to avoid, in [Dry Weed: Why It Happens and How to Fix It].

If It Comes Out Too Moist

This is the direction that actually needs more caution, since too wet is how mould gets started.

Signs it's too moist. Buds feel spongy or a little damp to the touch rather than dry with a slight give. They bend without any snap at all. You might see actual condensation beading on the inside of the jar. Smoked, it's hard to keep lit and burns unevenly, sputtering rather than smoking cleanly.

Signs it's gone further than moist, into actually mouldy. This is where you stop troubleshooting and just get rid of it. Real mould looks fuzzy or web like, sometimes with visible spots of white, grey, blue or black, and it often smells musty or damp in a way that's distinctly different from cannabis's usual smell. This is genuinely easy to confuse with trichomes at a glance, so here's the actual difference: trichomes look like fine, sparkly crystals evenly coating the whole bud, mould looks like fuzz or webbing concentrated in patches, usually starting in the denser inner part of the bud where airflow is worst. If you're not sure which one you're looking at, don't smoke it. Mould exposure isn't worth finding out the hard way, and it's a genuinely bigger risk for anyone with asthma or a compromised immune system.

Fixing mild over-moisture, before it becomes mould. Burp the jar more often, several times a day, until the excess moisture has had a chance to escape. A single food safe paper towel or a small piece of brown paper placed in the jar for a few hours will pull out surface moisture fast, just swap it out if it comes out visibly damp rather than leaving a wet paper towel sitting in there. A two way humidity pack works here too, since it absorbs excess moisture just as readily as it releases it when things are too dry. In more stubborn cases, spreading the buds out on a clean, dry surface in a dark room for a couple of hours, then rejarring, helps shift extra moisture before it turns into a bigger problem.

Quick Troubleshooting Reference

ProblemHow it feelsFixToo dryCrumbles to dust, weak smell, harsh burnTwo way humidity pack, one to two days sealedToo moistSpongy, damp, hard to keep lit, condensation in jarMore frequent burping, paper towel absorption, or a humidity packMouldyFuzzy or web like patches, musty smell distinct from cannabisDiscard, don't attempt to salvage or smoke it

FAQ

How long should I cure cannabis before it's ready? Most people consider it properly cured around three to four weeks of jar time with regular burping, though flavour keeps improving for months if you're patient enough to let it keep going.

Why does my cured cannabis still smell like ammonia or grass? That smell usually means it needs more burping time, trapped gas and moisture haven't fully escaped yet. It typically fades as curing continues.

How do I know if it's mould or just trichomes? Trichomes look like fine, sparkly crystals spread evenly across the bud. Mould looks fuzzy or web like, often in patches, sometimes with visible white, grey, blue or black spots, and it smells musty rather than like cannabis. If you're genuinely unsure, don't smoke it.

Can I fix cannabis that's gone mouldy? No. Once mould is confirmed, the safe move is to throw it out rather than try to salvage it, the health risk isn't worth it.

Does climate really change how I should cure or store cannabis? Yes, noticeably. Humid coastal areas need more frequent burping and stronger mould vigilance. Dry Highveld air pulls moisture out fast and makes over-drying the bigger risk instead. The fix, an airtight jar with a humidity pack, adjusts for both automatically.