making edibles with vaped weed

Cannabis Butter From Vaporizer Leftovers

Introduction: Cannabis Butter From Vaporizer Leftovers

Use the spent material from a vaporizer to create one cup of potent and versatile cannabis butter.

One needn’t throw away vaporizer leftovers. The heated plant material does not lose all of its potency in the vaporization process, and it’s easy to make use of those leftovers by dissolving the cannabinoids into a fatty mixture like oil or butter.

This recipe uses only butter, water, and ground marijuana. Potency will vary based on the strains that comprise the leftover vaporizer material, how spent the plant materials is (ie darkness of the roast), and individual tolerance level.

Check your local laws to determine if this project is legal where you live. I reside in Colorado, a state in which recreational marijuana has been legalized for adults over the age of eighteen. However, laws governing the sale, distribution, and use of marijuana vary by state as well as internationally. Use sound judgment, make good choices, and always use care when consuming edibles of unknown potency.

Step 1: Ingredients and Tools

  • (2) half-cup sticks of unsalted butter
  • (4) grams of vaporizer leftovers*
  • (1) gram of ground fresh cannabis
  • (3/4) cup of water
  • cheesecloth
  • stovetop range with a low heat setting
  • 1 quart saucepan
  • wire mesh strainer
  • 2-cup round dish
  • refrigerator

*Vaporizer leftovers vary in potency. A potent strain will yield more potent leftovers. The amount of heat applied from the vaporizer will determine how dark your roast looks: lighter color generally indicates that you’ll get more potency whereas a darker color indicates that you extracted the potency with the vaporizer and may need to supplement with additional leftovers or the addition of fresh herb.

Step 2: Mix, Heat, and Wait

  • Add the butter, ground herb, and water to the saucepan.
  • Set the burner to the lowest heat setting.
  • Set a timer for five or six hours, then wait.
  • Stir occasionally, making sure to scrape any errant bits of material from the sides of the pan.

The low heat setting ensures that you don’t inadvertently overheat the THC, thereby compromising its potency. Because THC is not water-soluble and the dried herbs float, the addition of water to the mixture is solely to float the ground herb away from the heat source.

Low and slow is the way to go to ensure that the THC bind with the lipids in the butter.

Step 3: Strain and Chill

After your mixture has simmered for several hours, it’s time to strain it to remove the solids from the mixture.

To do so, simply lay a square of cheesecloth over your mesh strainer. Secure the sides with one hand while pouring the mixture over the cheesecloth. The warm butter and water will pass through the cloth and mesh, leaving behind a buttery pile of damp solids. Use a spoon to squeeze out the remaining liquids, and you should end up with a dish of greenish-brown butterwater.

There may be some fine material in your cooling dish, and that’s okay. It’ll rinse off after the mixture separates and cools.

Let the mixture cool at room temperature, then cover it and pop the dish into the fridge for several hours to help the fats solidify. I recommend leaving it overnight to solidify. If you must hurry, do not use the freezer. Instead, fill a larger dish with cold water and place your smaller buttery dish into it to speed up the chilling process.

Step 4: Drain and Rinse

Behold the power of specific gravity!

You’ll notice that the fats all rose to the top of the dish, where they solidified into a puck of butter. The water settled to the bottom, and any tiny bits of floating herb floated above the water but below the butter.

To drain the water, I use a chopstick to poke a hole along one edge of the butter puck and another on the opposite side. Then simply pour the water out and discard it.

My butter puck has little brown bits of floating herb stuck to it. A quick rinse under cool water washes that right off, and you’re left with a clean batch of cannabutter.

Step 5: Finished Product

You should be left with just under 2 cups of clean, green cannabis butter.

Use it when baking, as a topping on toast, mixed into tea, or eat it plain. For the first few attempts at this recipe, pay close attention to the potency and use more or less vaporizer leftovers as needed.

Ingested marijuana takes longer to reach your bloodstream than vaporized marijuana. It can take anywhere from 30-90 minutes to feel the effects. If you have just eaten a heavy meal, it will take longer for the THC to reach your bloodstream. Conversely, if you haven’t eaten for several hours, the THC will hit your bloodstream faster. The psychoactive effect lasts longer when THC is ingested (up to eight hours) so don’t drive, operate heavy machinery, or hang out with your in-laws in the hours immediately following ingestion.

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10 Discussions

Now when it says simmer for 5 or 6 hours. What temp is that? Anyone got a bead on exact temp and exact time frame please answer.

There is! Read this thread, drop down to multiple extractions. I have not tried the washing method as I like the taste. I do mine in a crockpot.

is there any way to make duff butter more palletable? It’s so nasty tasting! The mb2 does it in two hours.

is there any way to make duff butter more palletable? It’s so nasty tasting! The mb2 does it in two hours.

1. 5-6 hours is overkill. After 1-2 hours all of the THC will be detached by heat and absorbed by the butter fat. Don’t waste your time with 6 hours of simmering. 2. This is an incredibly light dosage. Vaped marijuana only has around 20-30 percent THC content left. Personally if I were using two sticks of butter, I would add around a half to a full ounce of vaped weed. That would only be the equivalent of about 4.5 – 7 grams of fresh flower. 3. Make a little sachet out of the cheesecloth and tie the material inside. This will save you the straining step and probably some of the waste that goes along with pouring butter. 4. Water, water, water. This is a good water recommendation, usually about 2 parts fat, one part water. Once the butter is cooled and separated, melt down the butter and add water a second time. After this is cooled, melt it and add fresh water a third time. This will take more of the burnt taste out as well as remove almost all impurities. This is not as important with fresh flower as it is with vaporized. Hope this helps!

Cannabis Butter From Vaporizer Leftovers : Use the spent material from a vaporizer to create one cup of potent and versatile cannabis butter. One needn't throw away vaporizer leftovers. The heated plant material does not lose all of its potency in the vaporization process, and it's easy to m…

Making The Most Of Your Already-Vaped Bud

If you have been using a dry herb vaporizer for your cannabis, you may be immediately throwing it out after your session. What you may not know is that there are still cannabinoids left in this weed. Here are some of the ways you can put it to good use.

As a healthier alternative to smoking, more and more cannabis users are turning to vaping. There aren’t just vape cartridges for cannabis oil. There are also dry herb vaporizers one can fill directly with ground-up cannabis. To release the THC in the plant, these vaporizers should be heating in the 157–227°C (315–440°F) range. This creates a stronger, dizzier high with fewer health risks. It’s just vapour with cannabinoids and terpenes. Vaping weed will leave it looking brownish, as though it has now been degraded to the point where it can no longer be used. This impression has led many cannabis users to throw away already-vaped bud (AVB).


This would be a waste of cannabis that, in fact, still has many viable applications. It is not even the case that the psychoactive THC is completely gone. You will indeed get most of it from vaping, but it will still be there along with an abundance of other cannabinoids. That is unless it turns a very dark brown or black, in which case it’s been too overheated to be used again. Remember the ideal heat range of 157–227°C (315–440°F). If you are going to throw it away, at least see if you can compost it. There’s a lot more fun you can have with the used weed, though. Smoking your vaped weed in a joint might give you a mild high, but it’s usually bitter-tasting and unsatisfying. There are three things you can do that are a lot more fun and may bring a whole new dimension to culinary delights.


What many people don’t realise about vaping is that it is a form of decarboxylation. This is a key process in preparing cannabis edibles. Cannabis must be heated to turn cannabinoid acid THCA into active THC, for example. This is typically a time-consuming process in the oven. Then, your recipe for cannabis edibles will typically involve butter. If you are vegan, feel free to substitute any mention of butter with coconut oil. Obviously, the longer you spend saving up AVB, the more potent your cannabis edibles will be!

Since you basically skipped over the “regular” decarbing process, you can go right ahead and infuse your butter with your AVB. Heat a saucepan over low heat to a simmer with your butter (or coconut oil), an equal amount of water, and the vaped weed. From here, the infusing process is usually most effective after 2–4 hours, but can be left longer if desired. Just make sure it simmers and doesn’t boil. This will absolutely degrade the cannabinoid potency. Also, be mindful as this will create a strong smell in your kitchen.

When you are finished simmering, strain the mixture through some kind of mesh sieve or cheesecloth. This will remove the lumpiest parts from the mixture. In a perfect situation, you want to keep as little plant matter as possible. Leave the bowl of cannabis-infused butter to cool, then place in your fridge overnight. The following day, a hardened layer of butter should have formed on top of the water. Chip this off and add it to whatever sweet or savoury recipe you can imagine. You will enjoy a strong edibles high that could last between 4–8 hours.


If that process sounds too complicated, it is technically possible to eat the vaped weed raw. However, it will have a bitter taste and it won’t deliver as strong a high as infusing weed into edibles. You may be able to mask the taste with something like peanut butter or Nutella. You could sprinkle it onto food as an herb, or even grind it up with coffee beans for a real strong buzz in the morning. If you want to remove the bitter flavour, there is a curing process that will eliminate the odour and taste. This process can take up to 4–7 days however, so stock up on AVB until you have several grams or so to make it worthwhile.

The curing process requires you to wrap the vaped weed up in cheesecloth as though it was a big teabag. Leave it submerged in water. Check it regularly so that murky water can be replaced with fresh water. After 4–7 days, drain the water and spread the water-cured weed evenly across a baking tray. Preheat your oven to 90–95ºC (200ºF). Place the baking tray inside and carefully mix the weed every half hour. After 2 hours, the weed should be dry and ready to add directly to food or an edibles recipe, but now without the bitter taste of vaped weed.


Tinctures are also a popular, discreet method of taking cannabis. A dropper bottle allows you to administer concentrated cannabis oil right under your tongue. After holding 2–3 drops under your tongue for 30 seconds, you should start feeling effects within 15 minutes, which will last for a couple hours. In a similar process to the curing method above, you too can make your own cannabis tincture from your leftover vaped weed. Find an alcohol that’s at least 90 proof, like vodka or Everclear. Add your weed and leave it to steep. Every once in a while, shake it gently. You can leave it for a few hours or a few days. The longer you leave it, the more potent it will become.

After a few days maximum, strain the mixture through a cheesecloth, sieve, or other fine mesh. Store in a dark bottle in a cool place out of sunlight. The drops under your tongue could be every bit as wonderful in their impact as high-quality cannabis oils. At any rate, you will be getting the benefit of cannabinoids still present in your AVB.

You should be making the most of it after all. If you have any other suggestions on how to do this, leave a comment or get in touch on our social media channels.

Most cannabis users may throw away their weed after vaping it, even though there are a number of ways it can be put to good use.