FECO Cannabis Oil First Attempt: Best 4-Step Method

Best 4-Step Method: How to Make FECO From Green Dragon Tincture

Here is the best 4-step method for how to make FECO from green dragon tincture using a mug warmer at home:

Step 1: Pour Tincture Into Glass

Shake your green dragon tincture bottle well (store it with a wine stopper to remove air and keep it fresh). Pour approximately 60 mL of tincture into a heat-safe shot glass or small container. Place the glass on your coffee cup mug warmer set to the highest heat setting — the different settings are only a few degrees apart, so maximum heat speeds up evaporation without being dangerous.

Step 2: Cover and Evaporate (8+ Hours)

This is the FECO oil mug warmer evaporation method in action: place a coffee filter loosely over the top of the glass. This critical step — which Fordee skipped on his first attempt — prevents the tincture from bubbling and splattering onto the surface of the warmer as the alcohol evaporates. Open a window or ensure good ventilation, since you’re evaporating alcohol. Let it run for approximately 8–10 hours.

At the 8-hour mark, the liquid should have reduced dramatically. It will still smell strongly of cannabis. Check if any alcohol remains by smell — if you can still detect alcohol, let it continue a bit longer. Fordee’s batch still had some residual alcohol after 8 hours and 10 minutes, which technically makes it “almost FECO” rather than fully extracted. That’s fine for a first batch.

Step 3: Scrape and Collect

Use your silicone scraper to collect the dark, sticky concentrate from the sides and bottom of the glass. Scrape everything onto parchment paper first if needed. Any material that clings to the glass still contains potent cannabinoids — don’t waste it. If the concentrate is too thick to collect cleanly, proceed to Step 4.

Step 4: Add MCT Oil Carrier

Making a full extract cannabis oil MCT oil carrier mixture is the final step. Add 20 drops of MCT oil to the glass with the remaining concentrate. The MCT oil helps dissolve and mix with the sticky cannabis extract, making it easier to transfer into a dropper bottle and easier to dose under the tongue. Use a pipette to collect the mixture and fill your storage bottle.

FECO Cannabis Oil Dosage: The Rice Grain Rule

When it comes to FECO cannabis oil dosage rice grain is the standard starting point. A rice-grain-sized amount — roughly 0.1–0.2 mL — is considered a beginner dose for potent FECO. This is important because FECO is extremely concentrated. Starting from 60 mL of green dragon tincture (where 2–4 mL of tincture was a normal dose), the finished FECO could represent 12–30 doses compressed into a fraction of the volume.

Always start low with FECO. Fordee notes he had no CBD on hand to counteract an accidental overdose, so he kept his first dose to a rice grain. The taste is described as “not amazing, not the worst” — earthy and cannabis-forward, but manageable.

Lessons From This First Attempt

• Cover the glass: Without a coffee filter over the top, the tincture bubbles and pops during evaporation, leaving dark residue on the warmer surface. Always cover loosely.
• Patience pays off: 8 hours is a long time, but trying to rush the process by using higher heat risks degrading the cannabinoids or creating a fire hazard with alcohol fumes.
• Scrape everything: The sides of the glass will have significant concentrate clinging to them. A silicone tool is better than anything metal for this job.
• Small batches are smart first attempts: 60 mL of tincture produced a very small amount of finished FECO — about 1/10 of a 30 mL dropper bottle. Perfect for experimenting without wasting large quantities of flower.
• MCT oil makes it usable: Without a carrier oil, the FECO is too sticky and viscous to dose accurately. Even 20 drops of MCT oil makes a significant difference in consistency.