Guide
How to Water Cure AVB (Better Taste, Same Effect)
26 August 2026 • 8 min read
Water curing AVB soaks already vaped bud in cool water for one to three days to rinse out the roasted taste. Exact method, safe drying times and the real potency cost.

Water curing AVB means soaking already vaped bud in cool water for one to three days, changing the water every 8 to 12 hours until it runs nearly clear, then drying it completely before you cook with it. It strips out most of the roasted, ashtray flavor. It costs a little potency, though less than most people assume, because THC barely dissolves in water. Do it for butter, oil or tea, where you'll taste the result. Skip it for capsules and tinctures, where you won't.
What Water Curing Does to AVB (and What It Costs)
Vaping doesn't burn flower, but it does cook it. What's left in the chamber has spent minutes at 160 to 220°C and tastes like it: bitter, toasty, a bit like burnt popcorn. Water pulls out the water-soluble fraction, which is where much of the harsh flavor lives. The fat-soluble fraction, where the cannabinoids sit, mostly stays put.
The tradeoffs, honestly stated:
- Flavor: a big improvement. Cured AVB smells like hay or weak green tea instead of an ashtray.
- Potency: a small, unmeasured loss. The soak removes almost no THC; what you lose is fine particles washing through the cloth. Nobody has lab-tested a home water cure, so call it a few percent, not a fixed number.
- Time: one to three days of soaking plus drying.
- Effect: the same. Vaping already decarboxylated the material, and cool water doesn't undo that.
Worth it for edibles, tea and anything delicate. Not worth it for capsules, tinctures or a dark chocolate brownie that hides the taste anyway. For everything you can do with the stuff, see our guide to using already vaped bud.
Water Curing Methods Compared
| Method | Soak time | Water changes | Effort | Best for |
|---|---|---|---|---|
| Quick rinse (strainer, one short soak) | 1 to 2 hours | 1 or 2 | Very low | Slightly dark AVB going into strongly flavored recipes |
| Standard jar cure (cheesecloth pouch in a jar) | 24 to 48 hours | Every 8 to 12 hours, 3 to 6 total | Low | Butter, coconut oil, most edibles |
| Long cure | 3 to 7 days | Once or twice a day | Low but slow | Very dark AVB, tea, anything you'll taste directly |
| No cure | None | None | None | Capsules, tinctures, heavily spiced or chocolate recipes |
Learn the standard jar cure first. The long cure only earns its extra days on AVB that came out nearly black.
What You'll Need
- Cheesecloth (doubled over) or a nut milk bag. Use the bag for finely ground material; a loose strainer lets fines through.
- A mason jar or bowl big enough to submerge the pouch.
- Cool tap water. Hot water isn't needed, and a warm multi-day soak invites bacteria.
- A parchment-lined tray or paper towels for drying. A food dehydrator is faster if you have one.
How to Water Cure AVB Step by Step
- Collect a decent batch. Empty the cooled chamber into a dedicated jar every time you brush out your vaporizer. Small batches lose proportionally more to the cloth, so wait until you have a jar's worth.
- Bag it loosely. Tie the AVB into a doubled cheesecloth pouch or nut milk bag with room for water to move through. A tight ball cures unevenly.
- Submerge in cool water. Pouch under, lid on, counter or fridge. The fridge is the safer choice for anything longer than a day.
- Change the water every 8 to 12 hours. The first change looks like strong black tea. Each one after should come out lighter. Squeeze the pouch gently under fresh water each time.
- Stop when the water stays pale. Usually 24 to 48 hours. Once it stops darkening between changes there's nothing left to rinse out.
- Rinse and squeeze. One last rinse under the tap, then press the pouch firmly to wring out as much water as you can.
- Dry it completely. This is the step that matters. Details below.
- Store it labelled. Airtight jar, cool and dark, dated and marked as cured. Our stash jar guide covers the rest.
How to Dry Water-Cured AVB Without Growing Mold
Mold is the one way this goes wrong. Damp plant matter in a sealed jar can grow mold within days, and once it does the batch is done: bin anything with white fuzz or a musty smell. The dryness test is the one Penn State Extension uses for dried herbs: crispy, crumbles easily between your fingers, no cool or damp feel. If in doubt, give it another day.
| Drying method | Temperature | Time | Notes |
|---|---|---|---|
| Air drying on parchment or paper towel | Room temperature | 1 to 3 days, longer in humid weather | Free, but slowest and highest mold risk. Spread thin, break up clumps, stir daily. |
| Oven, door cracked open | Lowest setting, 75 to 82°C (170 to 180°F) | 1 to 3 hours, stir every 30 minutes | Fastest safe option. Penn State caps oven drying of herbs at 82°C (180°F) with the door open. |
| Food dehydrator | 35 to 57°C (95 to 135°F) | 2 to 4 hours | Most even result, least attention needed. |
| Microwave | Skip it | Hot spots scorch the material unevenly. |
At 82°C you're far below any vaping temperature, so you're not cooking off what's left, and below the range where decarboxylation moves quickly: a 2016 study in Cannabis and Cannabinoid Research found THCA doesn't fully convert within an hour below 100°C. A low oven does one job: removing water.
The finished material will weigh noticeably less than you started with, partly water, partly fines. And AVB doesn't need the 55 to 62 percent relative humidity we recommend for fresh flower in our humidity guide. It should be bone dry going into the jar.
Does Water Curing Reduce Potency?
Slightly, and mostly not for the reason people think. PubChem describes THC as "essentially insoluble in water," with a solubility of 2.8 mg per liter at 23°C. Even if a full liter of soak water hit that limit it would carry under 3 mg, and in practice it carries far less. What actually costs you potency is fine particles slipping through the cloth, which is why the mesh and your grind matter more than soak time.
The bigger variable is how much was there to begin with. A 2016 study in PLOS ONE ran five vaporizers at 210°C and found the residue held anywhere from about 2 percent of the original THC (the original Arizer Solo and the Plenty) to about 15 percent (the Volcano Medic). It also measured decarboxylation at 97 percent or better in every electric device, which is why AVB works in food without a separate decarb step. A short, low-temperature session leaves far more behind. Vaping temperature and session length decide how strong your AVB is; curing only trims the edges, as our guide to what temperature to vape flower explains.
Not medical advice: this is harm reduction information for adults, not dosing or medical guidance. Start low with any AVB edible, wait at least two hours before having more, and treat our dosing calculator as a rough framework only, since it's built around flower potency and AVB potency is a guess. The habits in our microdosing guide apply to learning a new batch too.
What to Expect Before and After
Uncured AVB is dark brown, smells roasted, and tastes bitter enough that most people bury it in chocolate. After a proper cure and dry, the color is a touch lighter, the smell shifts to dry hay or weak tea, and the bitterness is mostly gone. Butter or oil made from it is mild enough for lighter recipes, tea or honey. It is not flavorless; nothing made from plant matter is. The most reliable next step is infusing it into butter or coconut oil, since cannabinoids are fat soluble and a fat carrier is what makes AVB edibles work.
Frequently Asked Questions
Does water curing reduce potency?
A little. THC is essentially insoluble in water, so the soak itself removes almost none. The loss comes from fine particles washing through the cloth. Use a nut milk bag for finely ground AVB and it stays small.
How long should you soak AVB?
Change the water every 8 to 12 hours and stop when it stays pale between changes. That's 24 to 48 hours for most batches. Very dark AVB can go three days or more. Past a week is wasted time.
Why does AVB taste bad in the first place?
Because it's been cooked. Minutes at vaping temperatures produce the same bitter, roasted compounds as over-toasting anything, and hotter or longer sessions make it worse. Many of those compounds are water soluble, which is why curing works.
Can you skip curing for capsules?
Yes, and you should. A capsule hides flavor completely, so curing gives nothing back for the potency and time it costs. The same goes for tinctures. Fill them with the AVB as it is.
Do you need to decarb AVB after water curing?
No. Electric vaporizers decarboxylate 97 percent or more of the cannabinoids during normal use, and cool water doesn't reverse that. Dry it low and use it. A "just in case" oven decarb at 110°C or above only risks cooking off what's left.
The Bottom Line
Water curing is a cheap fix for the one real complaint about AVB edibles: the taste. Soak in cool water for a day or two, change the water until it runs pale, dry until it crumbles. The potency cost is small and mostly avoidable with a fine bag. Where taste doesn't matter, don't bother. Either way you're getting a second use out of material you already paid for, which is a big part of why a dry herb vaporizer saves money over time.
About the author
Practical context from the editor behind this guide.