Cannabis simple syrup is a sugar-and-water syrup infused with cannabinoids, usually a CBD or THC extract. You use it the way you'd use any flavored syrup: a spoonful stirred into sparkling water, iced tea, coffee, or a cocktail. The catch is that cannabinoids are oil-soluble, not water-soluble. A syrup only holds its dose evenly if the maker adds an emulsifier, a bit of alcohol, or a nano-emulsified extract to stop the cannabinoids from separating and floating to the top.

Pot Syrup: What's in the Bottle and How to Dose It

What actually goes into the bottle

Most versions start with a basic syrup: water and sugar heated until the sugar dissolves. After that, the cannabinoid source drives every other decision.

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  • Sugar base. A 1:1 syrup is thin and spoils faster. A 2:1 rich syrup is thicker, sweeter, and keeps longer.
  • Cannabinoid source. Oil tincture, distillate, or a water-soluble nano powder.
  • Emulsifier. Sunflower lecithin, acacia gum, or polysorbate 80. Skip this and the oil pools on the surface, which means your first pour and your last pour are not the same drink.
  • Acid and preservatives. Citric acid, a splash of high-proof alcohol, or potassium sorbate. These extend shelf life and cut the sweetness.
  • Flavor. Vanilla bean, citrus peel, ginger, or mint steeped into the warm syrup.

CBD syrup versus THC syrup

Hemp-derived CBD syrup sells openly in most US states because the extract has to stay at or below 0.3% THC by dry weight. THC syrup is a separate product in a separate legal category, sold only through licensed dispensaries in states with medical or adult-use programs. Labels matter. A bottle that says "hemp extract" but prints a THC milligram count per serving is not a CBD product, and it should not be treated like one.

Marijuana Syrup Guide: THC vs CBD, Dosing, and Safety

How to dose cannabis simple syrup

Because syrup is a liquid, it feels easier to control than a gummy. It usually isn't. The cannabinoids still have to pass through your digestive system, so the timing and the intensity follow edible rules, not tincture rules.

thc syrup

  • Start at 5 to 10 mg of CBD and give it a few days before moving up. CBD dosing is personal and varies with body weight, metabolism, and what else you've taken.
  • For THC, start at 1 to 2.5 mg. Onset runs 30 to 120 minutes, and the peak can hit after two hours.
  • Measure with a marked dropper, a jigger, or a syringe. "A splash" is not a dose.
  • Wait a full two hours before a second pour. Most bad edible experiences come from redosing too early, not from the first serving.
  • Write down the time you drank it. Syrup hits slower than smoking and lasts longer.

Making a small batch at home

  1. Combine 1 cup sugar and 1/2 cup water in a saucepan over medium heat. Stir until the sugar dissolves and the liquid clears. Don't let it boil hard, or it will reduce and thicken.
  2. Pull it off the heat. Whisk in 1/2 teaspoon of sunflower lecithin until it's fully dispersed with no clumps.
  3. Let the syrup cool to under 140°F, then stir in your cannabinoid extract. Heat degrades cannabinoids, so this step waits.
  4. Add 1/4 teaspoon citric acid and any flavoring. Whisk again.
  5. Pour into a sterilized glass bottle with a tight cap and refrigerate.

If you don't want to handle raw distillate, the simplest route is starting with a measured CBD tincture and adding it to a finished plain syrup. You lose some precision because alcohol-based tinctures thin the texture, but you keep the dosing math straightforward.

Storage and shelf life

A 1:1 syrup in the fridge is good for about two to four weeks. A 2:1 rich syrup can last two to three months refrigerated, since the high sugar content slows microbial growth. Anything with fresh fruit, herbs, or dairy added has a shorter clock, closer to one to two weeks. Signs it's done: cloudiness that wasn't there before, a fizzy smell, or mold at the surface. Toss it. You cannot taste your way around spoilage, and the cannabinoid content won't protect the syrup.

What to check before you buy

Third-party lab results should be on the product page or a scannable QR code on the bottle. I look for a cannabinoid potency panel that matches the label, a residual solvent screen, and a microbial test. A pesticide panel is a bonus, not a given, but a brand that skips it usually skips the rest too.

Also check the serving size against the total. A 30 mL bottle with 300 mg of CBD sounds strong until you realize a typical pour is 5 mL and a serving is 25 mg. And keep the bottle labeled and out of reach if there are kids or pets in the house. Sweet syrup in an unmarked container is an accident waiting to happen.