## Read This First
Puerto Rico is a medical-only jurisdiction. Licensed cannabis requires a valid medical patient registration with the JRCM. This piece assumes the reader is an adult 21+ with a valid registration, cooking with flower they purchased legally at a licensed dispensary, at a residence where consumption is permitted.
**This is not recreational content.** It is a kitchen primer for patients who have been prescribed access to medical cannabis and want to integrate it into home cooking under the guidance of a physician. Patients should discuss home cooking with their medicine with the physician who certified their JRCM registration. Dose math at home is harder than dose math at a dispensary; mistakes are more consequential than a bad edible from a shop.
For patients who want reliably-dosed, laboratory-tested edibles without the complications of home cooking, purchase commercial edibles from a JRCM-licensed dispensary. This piece exists for the patients who, informed by their physician, want the home-cooking path.
## The Legal Frame, Specifically
Cooking with JRCM-licensed flower at a private residence in Puerto Rico is permitted for adults 21+ with a valid patient registration. The flower must have been purchased through the licensed channel; cooking with illicit-market product is not within the program's scope and comes with all of the contamination-and-dose risks covered in [the medical-vs-street cannabis piece](/puerto-rico/medical-card-visitor-info/medical-vs-street-cannabis-puerto-rico-why-legal-matters).
What home cooking does not do:
- **Does not allow sharing or distribution.** An infused product prepared at home is for the patient, not for guests. Distribution outside the patient's own consumption falls outside the program's scope.
- **Does not remove the federal-flight rule.** Any prepared product, like any purchased product, cannot cross state or territorial lines. Federal law prohibits transporting cannabis across state or territorial lines, including on flights back to the mainland. This applies to infused oil, butter, baked goods, and any other home-prepared item as well as raw flower.
- **Does not expand legal consumption venues.** Infused food is still cannabis. Eating an infused brownie on a public beach is a public-consumption violation the same as smoking flower there.
## The Science, Briefly
Cannabis flower in its raw state contains THCA, the acidic precursor to THC. THCA is not intoxicating. Heat converts THCA to THC through a process called **decarboxylation**. Only decarboxylated cannabis produces the effects most patients are cooking for.
When you smoke or vaporize flower, decarboxylation happens instantly via the heat of combustion or vapor. In cooking, the patient has to decarboxylate the flower separately before infusing it into an oil or butter.
The two-step home process:
1. **Decarboxylation** — heat the flower at a controlled temperature to activate the cannabinoids.
2. **Infusion** — simmer the decarbed flower in a fat (oil, butter, ghee) to extract the cannabinoids into the fat. The infused fat is then used in cooking.
Dose consistency is the hard part. Commercial edibles are made in lab-controlled conditions with homogenization steps that home kitchens don't have. A home-infused batch has dose variability within the batch; two cookies from the same batch may have noticeably different doses.
## Dose Math
The rough math, with appropriate hedging:
**Step 1: Know the THC percentage of your flower.**
A JRCM-licensed package lists the THC percentage. Say it's 20% (a typical mid-high-potency flower). That means 1 gram (1,000mg) of flower contains roughly 200mg of THCA, which decarboxylates to roughly 175-190mg of THC (decarboxylation is not 100% efficient; call it ~88% of the THCA).
**Step 2: Decarboxylate.**
Spread ground flower on a parchment-lined tray. Heat at 240°F / 115°C for 40 minutes. Some kitchens prefer a longer low-temperature cycle (200°F / 95°C for 90 minutes) for better preservation of terpenes. Both work.
**Step 3: Infuse.**
Combine decarbed flower with the fat of choice. For 1 gram of 20% flower (~175mg THC) in 1 cup (240ml) of olive oil:
- Simmer on very low heat (**185-200°F / 85-95°C**, never boiling) for 2-3 hours, stirring occasionally.
- Strain through cheesecloth. Discard the plant material.
- Refrigerate the infused oil.
Assuming reasonable extraction efficiency (60-80% of the available THC transfers to the fat), your 240ml of oil now contains roughly **105-140mg of THC**, or roughly **4-6mg of THC per tablespoon** (15ml).
**Step 4: Portion carefully.**
A recipe that uses 4 tablespoons of infused oil contains roughly 16-24mg of THC. Split among 8 servings, that's 2-3mg of THC per serving. Start-low territory.
**Critical caveat:** this math is an estimation framework. Actual doses in home-prepared edibles can vary significantly from the calculation. Treat the first batch as an experiment, sample a small portion first, and wait at least 2 hours before deciding whether to eat more. Start low, go slow applies with extra emphasis to home-prepared edibles.
## The Infused Oil Method
Base recipe for 1 cup of infused olive oil:
- 1 gram of decarboxylated flower (7-10g for higher-dose batches; scale linearly and ALWAYS lower the per-serving portion proportionally)
- 1 cup (240ml) of a stable cooking oil. Olive oil is traditional; coconut oil has a higher cannabinoid extraction efficiency. Both work.
**Method:**
1. Combine decarbed flower and oil in a small saucepan or double-boiler.
2. Heat on very low heat. Hold at 185-200°F / 85-95°C. Use a thermometer; do not rely on visual cues.
3. Stir occasionally. No boiling. Boiling degrades cannabinoids.
4. 2-3 hours, then remove from heat.
5. Strain through cheesecloth into a clean jar. Press the plant material gently but don't squeeze excessively (releases chlorophyll).
6. Label the jar with date and approximate dose per tablespoon.
7. Refrigerate. Use within 2-3 months.
## The Infused Butter Method
Similar to the oil method, with a water bath to reduce burning risk:
- 1 gram of decarboxylated flower
- 1 cup (8oz / 225g) of unsalted butter
- 1 cup (240ml) of water
**Method:**
1. Melt butter with water in a saucepan on low heat.
2. Add decarbed flower. Hold at 185-200°F / 85-95°C for 2-3 hours.
3. The water protects the butter from scorching and helps pull water-soluble plant matter out.
4. Strain through cheesecloth into a heat-safe container.
5. Refrigerate. The butter will rise to the top and solidify; the water (with plant matter) settles at the bottom.
6. Remove solidified butter, discard the water layer, transfer butter to a storage container.
7. Refrigerate or freeze. Refrigerated use within 2-3 weeks; frozen up to 3 months.
## Sample Recipe 1: Infused Salsa Verde (Patient-Portion)
A compact, savory application of infused olive oil. The PR pantry reads naturally into this — recao, cilantro, lime, good olive oil.
**Batch size: 8 patient servings, roughly 2-3mg THC per serving at the dose math above. Adjust down if using a lower-potency starting flower or less oil. Serve as a small spoonful on grilled fish, chicken, tostones, or bread.**
Ingredients:
- 4 tablespoons (60ml) of infused olive oil (prepared per above)
- 2 tablespoons of plain olive oil (for body, non-infused)
- 1 bunch of cilantro, leaves and tender stems, finely chopped
- 2-3 sprigs of recao (culantro), finely chopped, if available
- 2 cloves of garlic, minced
- 1 small shallot, minced
- 1 jalapeño or aji dulce, seeded and minced
- Juice of 2 limes
- Salt to taste
Method:
1. In a small bowl, combine cilantro, recao, garlic, shallot, chile.
2. Add lime juice, non-infused olive oil, and salt. Stir.
3. Add the infused oil last. Stir gently.
4. Rest 10 minutes for flavors to integrate. Serve immediately or within a few hours.
5. Portion precisely. A standard spoonful (roughly 1 tablespoon) is 1/8 of the batch, or roughly 2-3mg THC. Start with half a spoon and wait.
Notes:
- Do not reheat or warm the salsa after the infused oil is added. Cannabinoids degrade with sustained heat, and the dose becomes unpredictable.
- The salsa keeps refrigerated for 1-2 days, but terpene quality is best the day of preparation.
## Sample Recipe 2: Coconut-Lime Tembleque (Patient-Portion)
A PR dessert classic, infused. Tembleque is a simple coconut pudding; the patient-kitchen version uses a small quantity of infused coconut oil for the dose and is explicitly for individual patient consumption.
**Batch size: 6 patient servings, roughly 3-4mg THC per serving at the dose math above. Use infused coconut oil for this recipe.**
Ingredients:
- 1 can (14oz / 400ml) full-fat coconut milk
- 1/2 cup (100g) sugar
- 1/3 cup (40g) cornstarch
- 1 teaspoon lime zest
- 1 pinch salt
- 1 tablespoon (15ml) infused coconut oil (prepared per the oil method above; the dose math here assumes ~5mg THC in that tablespoon)
Method:
1. In a saucepan, whisk coconut milk, sugar, cornstarch, lime zest, and salt until smooth.
2. Heat over medium-low, stirring constantly, until the mixture thickens and comes just to a simmer. Do not boil vigorously.
3. Remove from heat. Let cool for 5-10 minutes (this is important — the residual heat without direct flame lets you add the infused oil without degrading cannabinoids).
4. Stir in 1 tablespoon of infused coconut oil. Mix thoroughly for even distribution.
5. Pour into 6 small ramekins, dividing evenly.
6. Chill at least 2 hours.
7. Before serving, sprinkle with a touch of cinnamon or additional lime zest.
Notes:
- The 5-10 minute cool-down before adding the infused oil is the key dose-preservation step. Adding infused oil to actively simmering liquid degrades the cannabinoids.
- Each ramekin is 1/6 of the batch. Label them. Serve yourself one at a time.
- As with any edible: wait 90 minutes before deciding whether to eat more. Tropical heat plus infused dessert plus impatience is the combination that produces over-consumption experiences.
## Tropical-Climate Cooking Considerations
Puerto Rico's heat and humidity affect both the cooking process and the storage of infused products:
- **Kitchen heat management.** Long simmering sessions in a hot PR kitchen tax the A/C and the cook. Plan infusion batches for early morning or evening rather than midday.
- **Storage.** Infused oils and butters store in the refrigerator, and in PR's humidity, should stay there until immediately before use. Room-temperature storage in a PR kitchen is not recommended for any infused fat.
- **Consumption timing.** Edibles peak 1-3 hours after consumption. In tropical heat, dose response can feel stronger than in a cooler climate. Hydrate before, during, and after.
- **Storage security.** Label infused products clearly ("INFUSED / PATIENT ONLY / [DATE] / EST [X]MG PER [UNIT]"). Keep out of reach of any minors or non-patient visitors. This is a hard rule.
## What Not to Do
- **Don't scale a single-serving recipe up for a group.** Home-cooked infused food is for the registered patient. Sharing with non-patients is outside the program's scope.
- **Don't cook an infused batch while drinking.** Dose math requires attention. Save cannabis consumption for after the cooking is done and measured.
- **Don't estimate by eye.** Use a scale for flower, a thermometer for temperatures, and measuring spoons for portioning. Home edibles are not a good context for approximation.
- **Don't skip the small-portion first trial.** Make the batch, wait until you're in a safe context with no plans, eat a fraction of a normal portion, wait 2 hours. If it's underwhelming, eat more. If it's what you expected, you know the dose. If it's more than expected, you're glad you started small.
- **Don't cook with product that smells or looks off.** Even JRCM-licensed flower can degrade in humid PR storage. If something seems wrong with the flower, don't use it.
## Bringing Leftovers to the Airport — Don't
Under no circumstance should any home-prepared infused product end up in a suitcase or carry-on at the airport. Federal law prohibits transporting cannabis across state or territorial lines, including on flights back to the mainland. Infused oils, butters, baked goods, and any prepared items count. Consume or dispose of everything before departure.
## Compliance
- Puerto Rico is a medical-only jurisdiction. Licensed cannabis requires a valid medical patient registration with the JRCM.
- 21+ with a valid patient registration.
- Home cooking with JRCM-licensed flower is permitted at a private residence for the patient's own consumption.
- Home-prepared products may not be distributed or shared with non-patients.
- No public consumption, including infused-food consumption in public spaces.
- Federal law prohibits transporting cannabis across state or territorial lines, including on flights back to the mainland. This includes home-prepared infused products.
- Start low, go slow. Home dose variability is higher than commercial dose variability.
- Consult the physician who certified your JRCM registration before integrating home-cooked edibles into your routine.
## Where to Go Next
- [The PR food and cocina criolla guide](/puerto-rico/food-coffee/puerto-rico-food-cocina-criolla-guide)
- [Strain guide for PR climate and lifestyle](/puerto-rico/medical-card-visitor-info/cannabis-strain-guide-puerto-rico-climate-lifestyle)
- [Medical vs street cannabis in Puerto Rico](/puerto-rico/medical-card-visitor-info/medical-vs-street-cannabis-puerto-rico-why-legal-matters)
**This is editorial, not medical advice. Consult your physician about home cooking with your JRCM-licensed medicine.**