Make Your Own Synthetic Cannabinoid Blend

Written by LSDude. Posted in Articles, DIY, Synthetics

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Published on January 25, 2011 with 1 Comment

The stealthiest and most convenient way to smoke synthetic cannabinoids (JWH, RCS-*, CP-whatever, “Spice”, “K2″ etc) is by applying the chemical cannabinoids on something already accepted by society: Tobacco. It isn’t the healthiest thing to smoke, but it certainly doesn’t draw much attention in public.

Why tobacco? Unlike most other herbs people are putting JWH on and smoking, we’ve done studies on smoked tobacco. Is it addicting? Nicotine is, yes. Is tobacco safe? Not really. But keep in mind that we have practically zero studies on smoking “herbal” blends (damiana, etc) so we cannot exactly deem them safe. Retail cigarette tobacco also has superior burn qualities to most kitchen herbs, and is quite easy to roll.

I’m not trying to get you hooked on tobacco. It’s a nasty habit. In fact, this guide is written primarily for people who smoke tobacco (on its own or in a spliff.) If you don’t smoke tobacco, feel free to substitute that here with your favorite herb or blend of herbs. (see note below.)

Let’s start with some math. Unless you have a milligram accurate scale to the thousandth (0.001 g) these numbers will be slightly off. If your scale is accurate to the tenth of a gram (0.1g) then the numbers to be off by quite a bit! With these synthetic cannabinoids, it’s always better to go lower than higher. A JWH overdose is not very pleasant!

I have included the numbers for three different strengths. Keep in mind that this is based on my own subjective experience (and my own weight and tolerance) and may not apply to you. There is no standard for when a blend is “light” or “strong.” Again: You need to experiment with the numbers a bit. Use these only as a starting point.

For example, if we’re going with the “Mild” blend below, the following numbers will give us around 8mg of JWH per 1 gram of tobacco. This means that every rolled cigarette will contain around 2-4mg of JWH (more or less depending on how much you roll per cig. Be sure to start off LOW and pause for a few minutes between each toke. Again, a JWH overdose is not fun.)

If you’re a tobacco smoker, you may want to opt for the “Very Light” blend as this will let you smoke more tobacco without getting too high. Non-tobacco smokers who decide to use tobacco may want to go with the Strong blend because it will mean smoking much less tobacco. By “non-tobacco” smokers I mean people who only put a little bit of tobacco in their spliffs or take a drag here and there. If you’ve never smoked tobacco, I don’t suggest starting. Also, obviously tobacco adds its own “rush” to the blend altering the subjective effects a bit. This may or may not suit your taste.

What You Need

(If using a cannabinoid besides JWH, such as RCS-4, RCS-8, CP-whatever, these numbers do not apply to you! The process of making the blend remains the same but you will have to determine how much of the compound(s) to use. Be careful!)

Acetone: Solvent that’s primarily in nail polish remover (responsible for that smell.) Get this from Home Depot or a hardware store. Make sure it’s pure acetone. Note that it is extremely flammable and will melt plastics. Careful!

Do not use nail polish remover. Other solvents that may work are ethanol (alcohol you drink) or rubbing alcohol. Purer is better, but acetone is preferred because it contains no water and evaporates rapidly.

JWH: You will of course need the pure chemical JWH-018 or any other JWH compound, or a combination of JWH compounds like JWH-018, JWH-250, JWH-073, etc. This guide uses a blend of 2:1 JWH-081 and JWH-073. You can mix the compounds in whatever ratio you want to fine tune the blend for a specific high. It’s always better to put too little than too much. You can add more anytime, so start small.

Tobacco: The quality of the blend will rest almost solely on the quality of the tobacco used. In this guide I use the cheapest rolling tobacco available for illustrational purposes. “Kite” mentholated rolling tobacco which comes in pouches of 0.65 oz each. I use 2 pouches (1.3 oz or 36.4 g) If you aren’t using tobacco, see note below. In this context, “the medium” refers to either tobacco or whatever blend of herbs you’re using.

Glass, ceramic, metal or other non-plastic container*: Something wide and shallow with a lot of surface area works best as it allows the solvent to evaporate quicker, but any container will work fine.

Glass, ceramic or metal rod or spoon*: Anything to stir with.

Accurate mg scale: We’re working in MILLIGRAMS (1000mg is 1 gram), so the more accurate your scale, the better! Preferably accurate to the thousandth (0.001g) are great. If you don’t have one, scales accurate to the hundredth (0.01g) are dirt cheap. For this guide all I have laying around at the moment is a scale accurate to the tenth (0.1g) – not ideal but it works for demonstration.

(Optional) Menthol: Menthol crystals or spearmint leaves (supermarket/kitchen)

* Make sure you don’t use anything plastic. Acetone dissolves plastic!

STRONG – 14mg JWH per gram of tobacco
For 36g of tobacco, use 504mg of (~0.50g) of JWH
This guide uses JWH-018 & JWH-073 in a 2:1 ratio.
That comes out to 336mg JWH-018 + 168mg JWH-073 for a total of 504mg.

MILD – 10mg JWH per 1 gram of tobacco.
For 36g of tobacco, we need 360mg (or ~0.36g) of JWH.
This guide uses JWH-018 & JWH-073 in a 2:1 ratio.
That comes out to 240mg JWH-018 + 120mg JWH-073 for a total of 360mg.

LIGHT – 5mg JWH per 1 gram of tobacco.
For 36g of tobacco, we need 180mg (or ~0.18g) of JWH.
This guide uses JWH-018 & JWH-073 in a 2:1 ratio.
That comes out to 120mg JWH-018 + 60mg JWH-073 for a total of 180mg.

VERY LIGHT (for chain smoker) – 2mg JWH per 1 gram of tobacco.
For 36g of tobacco, we need 72mg (or ~0.07g) of JWH.
This guide uses JWH-018 & JWH-073 in a 2:1 ratio.
That comes out to 48mg JWH-018 + 24mg JWH-073 for a total of 72mg.

Adding Menthol (optional)

This is completely optional. I find menthol helps mask the taste of JWH (which is barely noticeable as it is) and adds a nice flavor to tobacco. It also numbs your mouth and throat from the harshness of tobacco and JWH in general without adding any harms or risks.

I add a small arbitrary crystal of menthol. If you overdo it, the blend will be too mentholated to smoke (no joke!) If you’re using pure menthol crystals, you will probably know how strong these are already. How much you add is a personal preference. You can always add more later, so start off with 1/4th the amount you think you need.

If you don’t have pure menthol (who doens’t?!) then you may use spearmint leaves instead. Replace 10g of tobacco with 10g of spearmint leaves leaving you the original weight this guide calls for. Legal or not, I personally don’t want anything green in my tobacco because it looks suspicious.

WARNING: There are two things you have to know before you begin.

1) Use absolutely NO plastics of any kind. Acetone will melt plastics. No plastic cups, containers, spoons, etc.

2) Acetone is extremely flammable. No smoking anything during the entire process, and no open flames of any kind anywhere nearby. Don’t let acetone fumes build up as they can sink and travel to find a spark. Obviously don’t attempt any of this in a closed area without adequate ventilation, or anywhere there can be an open flame (a basement with a boiler for instance.)

3) The acetone containers are annoying to deal with. They “hiccup” while pouring and easily spill, especially when pouring small portions from the large containers. Don’t pour it indoors except on concrete. If it spills, it can ruin finishes, plastics, and whatever else it may land on. If it lands on your hand it will feel very cold but otherwise does not cause damage. Wash it off with water and soap promptly.


In your GLASS or METAL container, pour enough acetone to submerge the entire tobacco medium. (Don’t add the tobacco yet however.) Adding a little more doesn’t hurt. It will just take a little bit longer to evaporate. You basically want the entire tobacco to be under the acetone to make sure the JWH is evenly distributed.

Weigh out and add your JWH compounds (and menthol if using crystals) into the acetone and stir until completely dissolved. Again, we’re adding 2 compounds here. JWH-018 and JWH-073, respectively. Make sure your scale is calibrated and accurate!

I added about 110mg of menthol. If you’re interested in how I got this number: That’s about 3 mg of menthol per gram of tobacco. Newports have around 4 mg per cigarette, and 1 cigarette has about 1 gram of tobacco. This Kite tobacco was also already mentholated (but barely.)

Now that all three things are dissolved in the acetone, put your tobacco into the medium and stir, making sure the tobacco is submerged and every part of it is wet. If the JWH does not evenly distribute itself on the tobacco, you may have “hot spots” where some of the tobacco will be much stronger than other parts. JWH dissolves fairly well in acetone and so this should not be an issue. All we have to do now is wait for the acetone to evaporate.

Absolutely no putting the acetone near any source of heat. Even a non-open flame such as an electric stove can get hot enough to ignite the acetone (see Autoignition Temperature.)

More surface area means more evaporation which means faster drying. I like to use an oven baking pan (metallic.) A ceramic or glass plate or upside down pot cover works too. Open air or a small fan blowing on the top of the container should be sufficient to evaporate all the acetone in a few hours. Stir the tobacco every 10-20 minutes. Remember not to leave the container in a closed space where the acetone can build up in the air. Doing this is not only stupid and dangerous, but will also make it evaporate slowly.

When the tobacco looks dry, check for an acetone smell. If there’s any hint of acetone left, stir the tobacco and let it sit for 10-30 mins. When the entire medium is dry (NO acetone smell and tobacco looks lighter brown like before it was soaked) pack the tobacco up and clean out the container/supplies used with warm water and soap.


Leave tobacco in a cool dark place. Avoid exposure to air and light to ensure product does not degrade in potency and quality. Dry tobacco is harsh and tastes bad.

Toke Responsibly. Every time you make a new blend, no matter how right you think the numbers are, test the compound by rolling a small skinny cig, taking one toke, waiting a few minutes, and then taking another. Slowly gauge how strong this blend is in EVERY batch.

Alternatives to Tobacco

For those who don’t want to use tobacco, you may substitute with the following (or a mixture of these):

Mullein (Verbascum sinuatum) – Great as a base because it has no psychological effects and is smooth when smoked.
Damiana (Turnera Diffusa)
Marshmallow leaves (Althaea officinalis)
Skullcap (Scutellaria – NOT the deadly mushroom)
Wild Dagga (Leonotis Leonurus)
Wild Opium (Lactuca virosa)
Spearmint (Mentha Arvensis, Pipertia)
Dream Herb (Calea Zacatechichi)
Chamomile (Matricaria Chamomilla)

Obviously some of these herbs will add their own psychological effects and taste to your blend.

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There are currently 1 Comment on Make Your Own Synthetic Cannabinoid Blend. Perhaps you would like to add one of your own?

  1. Where do I get the JWH ?

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