FECO (Full Extract Cannabis Oil) is a cannabis tincture of grain alcohol that has been infused with cannabis (in this case, hemp flower with high CBD), and reduced by adding heat.
Grain alcohol is a great solvent and easily soaks up all the good stuff you are after in the flower (cannabinoids like CBD). Adding heat causes the alcohol to evaporate and leaves behind a much more potent oil extract. This will also ensure that your edibles do not taste like alcohol.
Many cannabis companies use ethanol (food grade alcohol) as their solvent of choice when processing a flower into consumable products. Using food grade alcohol means having a bit of residual solvent is ok (unlike other solvents such as butane, pentane, or other gases).
How to Make FECO
Now, let’s get started with our supplies list:
- 14-28g hemp flower
- Grain Alcohol; We typically choose Everclear, which can be purchased at liquor stores. minimum 150 proof (75% ABV)
- Baking Sheet
- Strainer or cheesecloth
- Coffee Filters
- Mason Jars
- Jar for storage
CAUTION: GRAIN ALCOHOL IS HIGHLY FLAMMABLE. Could cause injury. Never use an open flame natural gas or propane burner or permit smoking around the cooking process.
Step 1: Decarb Flower.
Decarbing hemp flower will convert CBDa, which is more prevalent in raw flower, to CBD. Here are the steps:
- Preheat your oven to 250 F.
- Break up your hemp flower by hand (small pieces work best, don’t pulverize or grind flower too fine).
- Spread your broken up hemp flower onto a cookie sheet creating a very thin layer.
- Place the cookie sheet in your oven on a middle rack.
- Bake for 90 minutes.
- Remove from the oven and let cool.
Step 2: CBD Alcohol Tincture – QWET method
- Place the hemp flower in a mason jar. Put it in the freezer for a day or two.
- Just as a rough estimate – if you use 1 oz of hemp flower that is 12 – 15% CBD, your whole tincture will have around 3500mg of CBD. Reducing the tincture won’t change the dosage, but will change how much fluid is present.
- Place your alcohol in the freezer for a day or two as well.
- After the flower and the alcohol have been in the freezer for a day or two, pour the alcohol into the jar of decarbed hemp flower. Make sure the alcohol fully covers the flower.
- Give it a few good shakes and put it back in the freezer for 10-20 minutes.
- After 10-20 minutes in the freezer, quickly remove the jar and do a fast strain. (we like to use these mason jar mesh screens you can buy on Amazon. You can also use cheese cloth or a strainer.)
- The quick strain allows the cold everclear to soak up all the good stuff and leave behind a lot of plant fats and lipids. This ensures your edibles don’t have a strong hemp taste, but are very potent.
- Do a second strain of the alcohol using a coffee filter. This process is much slower, but will help remove any leftover plant particles.
- Now you have a potent alcohol tincture. You could use this tincture as is or reduce further.
- To reduce it, add the tincture to a saucepan. Heat on medium. Make sure the area is well ventilated (it will produce flammable gas as the alcohol evaporates), Never use an open flame for this.
Now you can store the tincture in dropper bottles or another container to use it later. Take as is or use in recipes such as our homemade CBD gummies.