THC Syrup: How to Make Cannabis-Infused Simple Syrup 2025

Learn everything you need to know about THC syrup, from preparation and dosing to storage and creative ways to use it.

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What Is THC Syrup?

THC syrup is a liquid cannabis infusion that blends decarboxylated cannabis with simple syrup, creating a sweet, potent, and versatile alternative to traditional edibles. Unlike gummies or baked goods, THC syrup absorbs more quickly into the bloodstream, making it a preferred option for those looking for faster effects without smoking or vaping. Whether you want to mix it into drinks, drizzle it over desserts, or take it straight, THC syrup offers a precise and customizable cannabis experience.

How to Make THC Syrup

Creating THC syrup at home requires careful preparation to ensure potency, consistency, and stability. The process starts with decarboxylation, the essential step that activates THC in cannabis before infusion. Heat your ground cannabis at 240°F for about 40 minutes to maximize its effects.

Once decarbed, prepare your simple syrup by heating equal parts sugar and water to 220°F, stirring until fully dissolved. At this stage, add the decarboxylated cannabis and simmer for about 30 minutes, allowing the THC to infuse into the mixture. To improve the syrup’s texture and help THC bind properly, add a small amount of vegetable glycerin before straining out plant material with a fine-mesh strainer. Let the syrup cool completely before transferring it into an airtight glass container for storage.

Ingredients:

• Decarboxylated cannabis (ground and activated)
• Granulated sugar (for sweetness and preservation)
• Filtered water (to dissolve sugar and create syrup)
• Vegetable glycerin (for emulsification and consistency)

Equipment:

• Digital thermometer (for accurate temperature control)
• Measuring tools (for precise ingredient ratios)
• Fine-mesh strainer (to remove plant material)
• Glass storage containers (to maintain freshness)

Proper Storage for Maximum Potency

THC syrup is best stored in a cool, dark place to prevent degradation. Refrigeration at temperatures between 35-45°F helps preserve potency and consistency. Using amber glass bottles reduces exposure to light, while an airtight seal prevents oxidation and evaporation. For best results, avoid high humidity levels and always use clean utensils when handling the syrup to prevent contamination. Properly stored, THC syrup can maintain its potency for three to six months.

Dosing & Consumption

One of the biggest advantages of THC syrup is its precise dosing. Because it’s a liquid, measuring THC per milliliter is easier than with solid edibles. Beginners should start with a small 5ml dose (about one teaspoon) and wait 30 to 60 minutes for effects before consuming more. The effects can last anywhere from four to eight hours, depending on your metabolism and tolerance.

How to Use THC Syrup:

• Mix it into coffee, tea, or cocktails for a discreet and flavorful cannabis experience.
• Blend it into smoothies or drizzle over desserts for an easy edible option.
• Take it sublingually (under the tongue) for faster absorption and stronger effects.

THC Syrup vs. Tinctures

Many people compare THC syrup to cannabis tinctures, but there are key differences. Tinctures are alcohol-based, meaning they absorb quickly when taken under the tongue. THC syrup, on the other hand, is sugar-based, making it a better option for mixing into drinks and edibles while offering a slower, more sustained release. If you prefer something sweet and easy to dose, THC syrup is the way to go.

Frequently Asked Questions

How long does THC syrup last?
With proper refrigeration, THC syrup remains potent for three to six months.

Can you freeze THC syrup?
It’s not recommended—freezing can alter its texture and consistency.

What’s the best way to measure doses?
Use a calibrated oral syringe or a measuring spoon for accuracy.

Final Tips for the Best Experience

To get the most out of your THC syrup, start with a low dose and gradually adjust based on your tolerance. Store it properly to maintain potency and always use a clean dropper or spoon for dosing. Whether you’re using it in drinks, desserts, or taking it straight, THC syrup offers a delicious and effective way to enjoy cannabis without smoking.