Comprehensive Guide On How To Make Rick Simpson Oil (RSO) At Home
Rick Simpson Oil is a highly concentrated cannabis extract produced through a solvent-based extraction process that strips cannabinoids and terpenes from plant material. The final product is a viscous, dark, resinous oil that requires precise temperature control during solvent evaporation to ensure safety and potency, typically yielding one gram of oil from approximately seven to ten grams of high-quality dried flower.
Essential Preparation and Equipment Protocol
The extraction process involves the use of volatile, flammable solvents. Safety is the primary constraint. Before initiating the workflow, ensure you are working in an environment with high-volume ventilation or outdoors, as solvent vapors are combustible and hazardous to inhale in high concentrations.
Essential Gear and Materials
One pound of high-quality, dried cannabis flower (Indica strains are traditionally preferred for their sedative profile).
Two gallons of a high-purity food-grade solvent, such as 99 percent isopropyl alcohol or high-proof ethanol (grain alcohol).
A large stainless steel or glass mixing bowl.
A stainless steel rice cooker (must have a manual temperature control or low-heat setting; avoid automatic shut-off models).
A fine-mesh strainer and unbleached coffee filters or cheesecloth for filtration.
A deep, wide glass or stainless steel funnel for solvent recovery.
A spatula or wooden spoon (silicone is preferred for heat resistance).
Personal Protective Equipment: Nitrile gloves, safety goggles, and a chemical-rated respirator if indoor ventilation is insufficient.
Project Benchmarks
Estimated Duration: 3 to 5 hours depending on the volume of plant material.
Budgetary Threshold: Costs vary based on solvent source and cannabis acquisition, typically ranging from 100 to 300 dollars per batch.
Safety Standard: Always operate far from open flames, sparks, or heating elements that do not allow for calibrated temperature management.
Technical Workflow for Solvent-Based Extraction
Step 1: Material Preparation and Initial Soaking
Begin by ensuring your dried cannabis material is broken down into smaller pieces to maximize surface area. Place the plant material into your large stainless steel bowl. Slowly pour your chosen solvent over the material until it is completely submerged. Use your wooden or silicone spoon to agitate the mixture, stirring and crushing the material against the sides of the bowl for approximately three to five minutes. This mechanical action releases the trichomes into the solvent.
Warning: Do not soak the plant material for more than five minutes. Prolonged exposure increases the extraction of chlorophyll and waxes, which negatively impacts the final oil’s taste and purity.
Step 2: Filtration and Primary Separation
After the initial agitation, pour the solvent mixture through your fine-mesh strainer into a clean secondary container, separating the liquid solvent from the plant waste. Once the primary liquid is drained, return the plant material to the bowl and add a smaller amount of fresh solvent. Repeat the agitation process for another three minutes. Strain this second wash into the same container as the first. The plant material can now be discarded or composted.
Step 3: Solvent Evaporation and Heat Management
Pour the collected solvent mixture into your rice cooker. Set the cooker to its lowest setting. As the solvent begins to evaporate, the liquid volume will decrease significantly. The goal is to reach a point where the solvent has been fully removed, leaving behind the concentrated resin. Monitor the internal temperature closely; do not allow the oil to exceed 290 degrees Fahrenheit (143 degrees Celsius), as this will degrade the cannabinoids and terpene profile.
Pro-Tip: As the solvent level becomes low, the mixture will become increasingly viscous. At this stage, add a few drops of water to the rice cooker to help release trapped solvent and prevent the oil from burning against the base of the container.
Step 4: Final Decarboxylation and Processing
Once the bubbling slows significantly and the consistency is dark and tar-like, the final stage involves gentle heating to finish the evaporation. Use a silicone spatula to consolidate the oil in the center of the rice cooker. Once no visible solvent bubbles remain, transfer the oil to a stainless steel dish or a syringe. The oil will thicken significantly as it reaches room temperature.
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Material and Extraction Parameter Comparison
| Parameter | High-Proof Ethanol | 99% Isopropyl Alcohol |
|---|---|---|
| Food-Grade Safety | Generally Recognized as Safe | Generally not for ingestion |
| Evaporation Rate | Moderate | Fast |
| Impurity Profile | Minimal (Plant-based) | Trace petroleum residuals |
| Ideal Usage | Edible/Sublingual RSO | Topical/Industrial Extraction |
Troubleshooting Common Production Failures
The Oil Remains Watery or Thin
- Root Cause: Incomplete solvent evaporation or excessive moisture trapped in the oil.
- Actionable Fix: Return the oil to the rice cooker on the lowest heat setting for another 30 minutes, ensuring constant monitoring until the consistency thickens.
Oil Exhibits a Harsh, Bitter Taste
- Root Cause: Over-soaking the plant material, which leaches excessive chlorophyll and waxes into the solvent.
- Actionable Fix: Ensure the next batch is strictly limited to a three-minute agitation window per wash.
Burnt Residue at the Bottom of the Cooker
- Root Cause: Heat spikes or insufficient stirring during the final stages of evaporation.
- Actionable Fix: Scrape the clean oil from the top and discard the burnt base; lower the heat intensity for future batches.
Frequently Asked Questions
Is it safe to use any type of alcohol for the extraction?
No, never use denatured alcohol, which often contains poisonous additives like methanol. Only use food-grade 99 percent isopropyl alcohol (intended for topical use only) or high-proof drinkable ethanol.
How do I store the finished oil?
The most effective way to store RSO is in a food-grade glass container or a plastic oral syringe kept in a cool, dark place. Light and heat can degrade the cannabinoids over time, so a refrigerator is an ideal storage environment.
What is the purpose of the water during the final evaporation?
Adding a small amount of water helps to regulate the temperature of the oil. It ensures that the temperature does not rise too high during the final stage of solvent removal, preventing the oil from scorching and preserving the chemical integrity of the cannabinoids.
How much RSO is considered a standard dose?
RSO is extremely potent, and dosing should be approached with extreme caution. The standard recommendation is to start with an amount no larger than half a grain of rice, taken orally or sublingually, and monitor effects for at least two hours before considering any adjustment.
Optimize Your Extraction Success
Mastering the production of concentrated extracts requires adherence to precise thermal controls and high-quality solvent management. Ensure your laboratory environment meets all safety standards before you begin your next extraction project.
