How to make Rick Simpson Oil at home safely is a common query in 2025 as more people explore full-spectrum cannabis extracts for wellness. Rick Simpson Oil (RSO), a thick, potent concentrate from indica cannabis, promises high THC levels (60-90%) and the entourage effect from cannabinoids and terpenes.
Rick Simpson developed this solvent extraction method after claiming it helped his skin cancer. While inspiring, homemade RSO carries serious risks—flammable solvents like naphtha or alcohol can cause explosions, fires, or toxic residues if mishandled.
This step-by-step guide prioritizes safety, using food-grade ethanol over dangerous alternatives. However, experts strongly recommend buying lab-tested RSO to avoid hazards and ensure purity. Legality varies—only legal in states allowing home cannabis processing. Consult professionals; this is educational only.


What is Rick Simpson Oil and Why Make It at Home?
RSO is a full-spectrum extract preserving the plant’s profile, unlike isolates. It’s viscous, dark, and syringe-packaged for precise dosing.
People make it at home for cost savings (1 lb cannabis yields ~60g RSO) and control over strains. Indica-dominant buds (high THC, low sativa) are ideal.
In 2025, with 24 recreational states, home production is feasible where legal—but dispensary RSO is safer, tested for contaminants.

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Legal Status of Making RSO at Home in 2025
Federal law classifies cannabis Schedule I, but 38 states allow medical use, 24 recreational. Home extraction legality mirrors growing/possession limits.
- Legal States (e.g., CA, CO, NY): Allowed if within plant/gram caps (e.g., 6 plants CA).
- Medical Only: Possible with card, but check processing rules.
- Illegal States: Full prohibition—risk felony charges.
Source from dispensaries; unlicensed grows illegal federally. Verify local laws to avoid fines/jail.

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Essential Materials for Safe RSO Production
Gather these for ~4-60g yield:
- Cannabis: 1 oz-1 lb dried indica buds (high-THC, organic).
- Solvent: 1-2 gallons 190-200 proof food-grade ethanol (Everclear)—avoid naphtha/isopropyl (toxic, hard to purge).
- Tools: Blender/grinder, 5-gal bucket, cheesecloth, glass jars, rice cooker (electric), fan, syringes, gloves, goggles.
- Optional: Scale, thermometer, double boiler.
Yield: 1 oz flower ~3-5g RSO (50-80% cannabinoids).

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Critical Safety Precautions Before Starting
Making RSO involves flammables—explosions reported from poor ventilation/sparks. Prioritize:
- Ventilation: Outdoor or fan-blown area—no enclosed spaces.
- No Flames/Sparks: Electric rice cooker only; avoid gas stoves, lighters, smoking.
- PPE: Gloves, goggles, respirator for fumes.
- Temperature: Never exceed 240°F—degrades cannabinoids.
- Solvent Choice: Ethanol evaporates cleanly; naphtha leaves toxins (cancer risk).
- Test Final Product: Send to lab for residuals (pesticides, solvents).
Warning: Not for beginners—many injuries from DIY. Buy ready-made instead.

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Step-by-Step Guide: How to Make Rick Simpson Oil Safely
Step 1: Decarboxylation (Activate THC)
- Preheat oven to 240°F (115°C).
- Grind cannabis coarsely (shake consistency)—avoid powder.
- Spread on parchment-lined tray.
- Bake 40-60 min, stirring halfway. Turns brown, smells nutty.
- Cool completely.
This converts THCA to THC—skipping weakens RSO.

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Step 2: Freeze Materials
- Freeze ground cannabis and ethanol 1-2 hours.
- Cold minimizes chlorophyll (bitter taste), maximizes cannabinoids.
Step 3: First Solvent Wash
- In 5-gal bucket, add frozen cannabis.
- Pour ethanol (cover 1-2 inches), stir 3 min max (quick wash).
- Filter through cheesecloth into glass jar—squeeze gently.
Plant matter retains ~20% cannabinoids—optional second wash (1 min stir).

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Step 4: Evaporate Solvent (Outdoors!)
- Critical Safety: Do this outside, flat surface, away from sparks.
- Pour tincture into rice cooker (no lid).
- “Keep Warm” setting (~160-200°F)—add water if needed.
- Fan blows across top (disperses vapors).
- Evaporate until bubbling stops (~30-60 min)—syrupy, dark oil forms.
- Final purge: Small dish in cooker at 100-150°F till no alcohol smell.
Bubble Test: Oil ready when no solvent bubbles on heat.

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Step 5: Collect and Store
- While warm, syringe oil (easier flow).
- Store in cool, dark place (fridge 1-2 years).
- Label potency/strain/date.
Test for residuals professionally.

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Common Mistakes and How to Avoid Them
- Over-Washing: Extracts chlorophyll—bitter, green RSO. Quick stir only.
- High Heat: Destroys terpenes/THC—stick to <240°F.
- Poor Ventilation: Fume buildup explodes—always fan/outdoors.
- Wrong Solvent: Naphtha toxic—ethanol only for ingestible.
- No Decarb: Inactive oil—wastes material.
Start small (1 oz) to test.
Dangers of Naphtha and Unsafe Solvents
Original Simpson used naphtha—highly dangerous:
- Flammable vapors ignite easily (explosions common).
- Toxic residues (neurotoxic, carcinogenic).
- Hard to purge fully.
2025 consensus: Ethanol safer, purges clean. Isopropyl OK topically, not oral.
Hemp-Derived Alternatives (Legal Nationwide)
For non-legal areas, full-spectrum hemp RSO-style (<0.3% THC) mimics benefits safely—no high-THC risks.
Use same process with CBD-hemp flower.
Why Buy Lab-Tested RSO Instead?
Homemade risks inconsistency, contaminants. Dispensary/lab RSO:
- Tested potency/solvents.
- Consistent quality.
- No explosion hazard.
For safe, potent RSO, check RSO Healing Hub.
Using Your Homemade RSO
Start rice-grain size (0.05g), 3x/day—build to 1g/day over weeks.
- Sublingual/oral/topical.
- Effects: 30-90 min.
Complement with Magic Mushroom Store for holistic options.
Storage and Shelf Life
- Cool/dark/fridge: 1-2 years.
- Syringes/jars: Airtight.
- Check for rancid smell.
Frequently Asked Questions
- Safe for edibles? Yes, if ethanol-purged.
- Yield from 1 lb? ~60g.
- Decarb necessary? Yes for potency.
Conclusion
How to make Rick Simpson Oil at home safely requires precision, safe solvents like ethanol, and strict precautions—outdoor evaporation, no flames. While empowering, risks (fires, toxins) make lab-tested RSO preferable for most.
Skip DIY hazards—get quality extract.
Tried homemade RSO? Share safely in comments—what challenges did you face?

