To make cannabis syrup at home, decarboxylate ground cannabis at 240 F for 30 to 40 minutes, infuse it into a carrier such as coconut oil, glycerin, or high-proof alcohol, then whisk that infusion into a warm simple syrup with a small amount of lecithin. The lecithin binds the fat to the sugar water so the THC stays evenly mixed instead of floating to the top. Dose by milliliters rather than by taste, because one teaspoon can hold a full psychoactive serving.

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What Ingredients and Tools Do You Need?

Step 1: Decarboxylate the Cannabis

Raw cannabis holds THCA, which is not psychoactive until heat removes a carboxyl group. Spread coarsely ground flower on a baking sheet and bake at 240 F (115 C) for 30 to 40 minutes, stirring once halfway through. Hotter or longer roasting destroys THC and leaves a bitter, sleepy syrup.

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Step 2: Infuse the THC Into a Carrier

Cover the decarbed cannabis with one cup of your chosen carrier in a sealed jar. An alcohol tincture needs one to two weeks of shaking daily, while glycerin or oil infuses in a double boiler at 160 to 180 F for two to three hours. Strain through cheesecloth and squeeze the plant material to recover every drop.

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Step 3: Build the Simple Syrup

Warm one cup of water and one cup of sugar over medium heat until the sugar dissolves completely. A 2:1 sugar-to-water ratio creates a richer syrup that resists spoilage and keeps longer in the refrigerator. Avoid a hard boil, since caramelized sugar muddies the flavor and thickens the texture.

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Step 4: Blend In the Infusion and Emulsifier

Let the syrup cool to about 140 F, then whisk in your strained infusion and one teaspoon of lecithin per cup. Blend for 30 seconds until the mixture looks uniform and slightly cloudy. Bottle it in a dark glass container with a dropper and label it clearly with the batch date.

How Do You Dose Homemade Cannabis Syrup?

Estimate total THC by multiplying the flower weight by its THC percentage, then assume roughly 80 percent survives decarbing and straining. Most homemade batches land between 2 and 5 mg of THC per milliliter. Start with a 2.5 mg test dose, wait two hours, and adjust, because edible THC peaks later than inhaled THC.

How Long Does Cannabis Syrup Last?

Refrigerated sugar syrup stays fresh for two to four weeks, and alcohol-based versions can keep for several months. Syrup made with fresh fruit juice or no preservative grows mold within days, so freeze it in ice cube trays for long storage. Discard any bottle showing film, bubbles, or a sour smell.

Can You Make Cannabis Syrup Without Alcohol?

Yes. Glycerin and coconut oil both work as alcohol-free carriers when paired with lecithin. Oil-based syrup separates in cold drinks and needs a quick shake before each pour, while glycerin blends more smoothly but tastes slightly sweet.

Is Homemade Cannabis Syrup Legal?

Rules vary by state, and homemade cannabis products remain illegal in several jurisdictions even where retail sales are allowed. Check your local law before infusing, and store the finished syrup locked away from children and pets.