Toronto winters regularly drop below freezing, and cold temperatures can affect cannabis products in different ways. Whether you order flower, vape carts, edibles or cannabis drinks, understanding how winter weather affects each product can help you know what to expect when your order arrives.
The good news is that cold temperatures generally don't destroy THC. However, they can make flower trichomes more brittle, thicken cannabis oil in vape carts, change the texture of edibles and freeze cannabis drinks. Knowing how each product responds to the cold can help you handle and store your order properly during Toronto's winter months.
Does Cold Weather Damage Cannabis?
No, not in the way heat does. THC and other cannabinoids break down faster with heat, light and air, and cold slows that process rather than speeding it up. A few hours or even a few days at freezing temperatures won't make your cannabis less potent.
Cold does create two practical risks:
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Brittle trichomes. The resin glands on flower become stiff and fragile when frozen, so they snap off more easily if the flower is handled roughly.
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Condensation. When a cold package comes into a warm room, moisture in the air can condense on cold surfaces, including the cannabis inside if the container is opened too soon.
Both are easy to avoid if you handle the package correctly when it arrives.
Flower
Flower is the most durable product in cold weather, as long as it's left sealed until it warms up.
Frozen trichomes can break away from the bud if the flower is shaken, squeezed or ground while it's still cold. That doesn't change the total THC in the package, but some of it ends up as loose powder at the bottom of the bag instead of on the bud. Let the flower warm to room temperature before you open it, break it up or grind it.
Condensation is the bigger concern. If cold flower is exposed to warm, humid air, moisture can settle on the buds. A small amount usually evaporates, but repeated moisture can create conditions for mould. Keeping the bag or jar sealed until it reaches room temperature prevents this.
Once it's warmed up, store flower in an airtight container at room temperature, away from heat and light. Humidity packs help keep it from drying out during dry winter months, when indoor heating lowers humidity.
Vape Carts and Batteries
Cannabis oil thickens in the cold. A cart that has been sitting in a cold parcel may feel tight to draw from or produce very little vapour at first.
This is temporary. Let the cart warm to room temperature for an hour or so before using it. If the oil still feels thick, a low-power preheat on a 510-thread battery can help it flow. Avoid using high voltage to force a cold cart, which can scorch the oil and leave a burnt taste.
Batteries need a little more care. Lithium-ion batteries lose charge faster in the cold, so a battery may seem weak or dead when it first arrives. Charging a lithium-ion battery while it's below freezing can damage it, so let it warm to room temperature before you plug it in.
Disposable vapes have the same considerations, since they contain both oil and a battery.
Edibles
Most edibles handle cold well, and freezing doesn't reduce their THC content.
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Gummies may feel firmer when cold, but they return to normal once warmed. They can stick together if they get damp, so keep the package sealed while they warm up.
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Chocolate can develop a white or grey film, called bloom, after temperature changes. This is caused by sugar or fat rising to the surface. It affects appearance and texture, not safety or potency.
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Baked goods generally freeze well. Let them thaw in their packaging so moisture doesn't make them soggy.
Drinks
Cannabis drinks are mostly water, so they can freeze in very cold conditions. Freezing liquid expands, which can strain or damage cans and bottles.
If a drink arrives frozen, let it thaw slowly in the fridge rather than near a heater. Some drinks may separate after freezing, so gently turn the container before opening. If the container is bulging, cracked or leaking, don't drink it.
How to Unbox a Winter Delivery
The most important step is giving your order time to warm up before you open anything.
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Bring the parcel inside as soon as possible. Don't leave it in a mailbox, lobby or car longer than necessary.
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Leave everything sealed. Keep the outer box closed, or at least leave the individual packages unopened.
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Let it reach room temperature. An hour or two is usually enough for most orders. Larger orders may need longer.
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Handle flower gently. Avoid squeezing or shaking bags and jars while they're still cold.
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Wait before charging batteries. Only plug in vape batteries once they've fully warmed up.
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Check for damage. Look for cracked containers, leaks or swollen batteries before using anything.
Receiving Deliveries in Winter
A few steps reduce how long your order spends in the cold.
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Track your parcel. Following tracking updates lets you plan to be home when it's likely to arrive.
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Choose a secure delivery location. If you live in a condo, make sure your concierge or parcel room can accept it, so it isn't left outside.
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Collect it promptly. If you get a delivery notice, pick the parcel up from the post office or parcel locker as soon as you can.
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Allow extra time around storms. Snowstorms and holiday volumes can slow delivery, so order a little earlier than usual in December and during severe weather.
Planning Your Winter Order
Cold weather won't reduce the potency of your cannabis, but it does change how you should handle your order when it arrives. Keep everything sealed until it warms to room temperature, handle flower gently and let batteries warm up before charging.
For delivery times, tracking details and what to do if a parcel is delayed, see the shipping information page before you place your order.
