eli5 – why do solid oils become soft/spreadable from digging a finger into the container?

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I’ve witnessed this with face creams, coconut oil, and lip balm – anything solid at room temp. if you dig a finger into the product, or run your nail against it, what comes away is soft and spreadable, rather than a hard chunk. I imagine the cell structure is changing in some way, but – what way? why does this happen?

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4 Answers

Anonymous 0 Comments

They’re melting.

Your body is around 98°. Those materials you’re describing have a melting point lower than 98°. They’re solids at room temperature but just barely, and they’re liquids at just above room temperature.

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