Don’t know if it happens to other cans as well but why do spray paint cans feel cold when we touch after shaking them?
In: Chemistry
When you hold the can, the outside of the can gets warm because your hand is heating it up.
When you shake the can, the cold paint inside stirs around and when the colder paint contacts the inside of the can, it feels cold again. If you’re shaking it constantly, it’ll constantly feel a little cold until all the paint has warmed up.
Actually using the spray can can cause the inside to get a little colder as well, since the propellent (the stuff inside the can that isn’t paint) is expanding, which causes it to cool down. Shaking it brings this cold fluid to the edges of the can.
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