Quick answer
Use activated THC oil. Check the mg per mL figure on the label. Measure with a syringe, not a spoon. Start at 2.5 mg per serving. Wait 2 hours before a second dose. Mix the oil into food that contains fat. Add the oil after baking if the oven runs above 320 F.
Step 1: Confirm the oil is activated
THC oil comes in two forms. Distillate, RSO, and most commercial tinctures are decarboxylated, so the THC is active. Raw cannabis oil and homemade flower infusions are not. Heat converts THCA to THC. An unactivated oil in a brownie adds little effect.
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Labels state "activated," "decarboxylated," or list THC instead of THCA. A lab panel that reports total THC means the oil is ready to eat.
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Step 2: Read the concentration
Find two numbers: total milligrams of THC and total milliliters of oil. Divide mg by mL. A 30 mL bottle with 1000 mg THC holds 33 mg per mL. A 15 mL bottle with 100 mg THC holds 6.7 mg per mL. The second bottle needs five times the volume for the same dose.
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Step 3: Do the dose math
- 1 mL equals about 20 drops from a standard dropper.
- 33 mg per mL: one drop is 1.65 mg. Ten drops are 16.5 mg.
- 0.1 mL equals 3.3 mg in the 33 mg per mL bottle.
- A 1 mL oral syringe with 0.1 mL marks measures these amounts.
Dropper counts vary by bottle. Syringes do not.
Step 4: Pick a carrier food
THC binds to fat. Butter, coconut oil, peanut butter, chocolate, and full-fat yogurt hold the oil and spread it through the batch. Water-based mixes, such as gummies made without an emulsifier, can separate. Oil that pools in one corner gives one piece the full dose.
Step 5: Mix and bake
THC boils near 315 F (157 C). Ovens set to 350 F lose potency. Two options: bake at 320 F or below, or bake the food first and stir the oil into the cooled product. No-bake recipes remove the risk.
Stir for 30 seconds or more. Scrape the bowl walls and the bottom.
Step 6: Wait
Edibles pass through the liver. Onset runs 30 to 120 minutes. Peak effects arrive at 2 to 4 hours. Effects last 4 to 8 hours, longer than inhaled THC. A second dose taken at 45 minutes stacks on the first.
Storage and labeling
Keep the bottle closed, upright, and away from light and heat. THC degrades with UV light and oxygen. Write the mg per serving on the container. Keep edibles away from children and pets. Poison centers report rising calls about cannabis edibles, and child cases are the most common.
Legal notes
Federal law places THC in Schedule I. State rules on homemade edibles, potency caps, and packaging differ. Check state law before you cook or share.