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Generally, no. The cold may cause the liquid contents to solidify, but they don't take up that much room in the container. That means they won't freeze and expand and break the container by doing so, even if they expand when they freeze. Freezing the propellant doesn't do anything to it except reduce its vapor pressure.

Addendum... the first answer is right on. I add only that this myth comes from what happens when you freeze water, where it flashes from a dense liquid to a less dense crystal lattice. That "formalized" shape takes up more room than the liquid form which is why ice cubes float in water. This lattice formation is actually quite rare, and doesn't usually apply to non-water gases or liquids.

Actually, both above are generally wrong. It is predicted that no, an aerosol can will not explode. It will IMPLODE. Yes, it does matter how cold it is. If it was -10, then no. But if it is drastic, say -150 degrees or so, it will implode because if the liquid in the can is under pressure already, it would have to be HEATED to explode! Duh! So it is possible that it will implode. Never explode in cold temperature.

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9y ago
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6mo ago

Aerosol cans can potentially explode if they are exposed to extreme temperatures, such as freezing. This is because the pressure inside the can may increase as the propellant expands when frozen, causing the can to rupture. It's best to store aerosol cans in a cool, dry place to prevent this from happening.

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Q: Will aersol cans explode if they freeze?
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