Updated April 25, 2026 · Originally published April 8, 2021
There's nothing worse than spending hours concocting the perfect cannabis infusion just to have it go bad or lose potency before you use it all. Now that you've mastered measuring the potency of your infusion, you'll need to store it properly. Here's how to do it like a pro.
🔑 Storing Cannabis Infusions: Key Takeaways
Also in this guide
UV light degrades cannabinoids fast. Test your infusion before and after storage.
Test with tCheck →How to Properly Store Cannabis Infusions
When it comes to keeping infusions fresh, light and heat are your biggest enemies. Ultraviolet light quickly degrades cannabinoids, even in relatively stable alcohol tinctures. Heat is your second enemy — and it also encourages mold and mildew growth, which thrive at 78–85°F.
Pro Tip: Use gloves when handling infusions and edibles. Bare hands transfer oils and microbes that cause contamination and accelerate spoilage.
Containers for Storing Infusions
Most experts agree that airtight glass containers are the best storage solution for cannabis infusions. Plastic isn't recommended, especially for long-term storage — chemicals can leach into your infusions and contaminate them over time.
Glass has a neutral electrical charge and won't affect the flavor of your infusions. Glass Mason jars can be filled with hot cannabutter and later stored in the freezer. The best containers are made of colored (amber or dark blue) glass, which blocks more UV light. If you don't have colored glass, wrap clear jars in black construction paper or opaque fabric.
Metal containers — especially titanium — make another great option, though they're typically more expensive. Always label each infusion with the date it was created, the strain used, and ideally an initial potency reading from tCheck.
Storing Different Types of Infusions
Each category of infusion has different storage needs. Adjust your method based on the most perishable ingredient in the blend.
Cannabutter
You can store cannabutter in an airtight jar for up to three weeks in the refrigerator, or around six months in the freezer. If freezing in glass jars, leave at least one inch of headroom to allow for expansion. Clarifying the butter before infusing removes water-containing milk solids and can significantly extend shelf life.
Pro Tip: Clarifying the butter before infusing enhances flavor and may extend shelf life. You'll be removing a lot of the water that creates a fertile breeding ground for microbes.
Infused Oils
Most people use coconut oil or olive oil for infusions. Store both cooking and topical versions in glass jars in the refrigerator. For easy portioning, fill ice cube trays and freeze for single-use servings. Avoid microwaving or cooking infused oils over high heat — it burns off many of the cannabinoids and terpenes you worked to preserve.
Pro Tip: Make a larger batch and divide into smaller containers. Customize each with herbs, essential oils, or other ingredients for different purposes — cooking, oil-based tinctures, or topicals.
Edibles
Gummies and hard candy last longer than baked goods. Always check the expiration date of each ingredient, and make more perishable edibles in smaller batches. Wrap chocolates and brownies in aluminum foil or parchment before placing in airtight containers in the refrigerator or freezer. Never use plastic wrap.
Pro Tip: Cannabis edibles can look exactly like regular food. Label everything clearly, ensure all household members know which items are medicated, and store edibles out of the reach of children and pets.
Tinctures
Brown or blue glass dropper bottles are ideal for tinctures. Alcohol tinctures stored in a cool, dark cabinet can stay potent for years. Vegetable glycerin tinctures are more perishable and should be refrigerated or frozen for long-term storage.
Pro Tip: Test your tinctures periodically with the tCheck home potency tester to confirm they're still performing as expected — especially if they've been stored for several months.
Testing Your Infusions for Potency
Potency testing is the only reliable way to know the true strength of your infusions. Sending every batch to a lab gets expensive fast — and you can't test as frequently as you'd like.
With the tCheck cannabis potency tester, you can check your infusions as many times as needed without waiting for external lab results. Test when you first make the infusion and again after storage to understand how well your methods are preserving potency. tCheck also includes a built-in recipe calculator to help you determine exactly how much infusion to add to edibles for a target dose.
Frequently Asked Questions
What is the best container for storing cannabis infusions?
Airtight glass containers are best — particularly dark or amber glass that blocks UV light. Mason jars work well for cannabutter and oils. Amber glass dropper bottles are ideal for tinctures. Avoid plastic for any long-term storage.
How long does cannabutter last in the refrigerator?
Cannabutter stored in an airtight glass container typically lasts 2–3 weeks in the refrigerator, or up to 6 months in the freezer. Clarifying the butter before infusing can extend refrigerator shelf life by removing moisture-holding milk solids.
Does cannabis infusion lose potency in storage?
Yes. Cannabinoids degrade through exposure to UV light, heat, and oxygen. Properly stored infusions in dark glass, kept cool and away from light, retain potency significantly longer than those stored in clear containers at room temperature. Use a potency tester like tCheck before and after storage to track any degradation.
Can you freeze infused oils?
Yes. Infused coconut oil and olive oil both freeze well. Freeze in single-use portions using silicone ice cube trays for easy portioning. Avoid repeated freeze-thaw cycles, which can degrade both quality and potency.
Properly storing your cannabis infusions is essential to preserving their potency, freshness, and safety. Protect them from light, heat, and air using dark airtight glass containers. Adjust your storage method based on infusion type — cannabutter needs refrigeration or freezing; alcohol tinctures can go in a dark cabinet. And use the tCheck device to track potency over time so you're always dosing with accurate, current information.
