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jca2's avatar

Why would dental floss have an expiration date on it?

Asked by jca2 (16834points) 2 hours ago

I was looking at a thing of dental floss that I found in an old pocketbook, and it has an expiration date on it.

Why would dental floss expire? It doesn’t have any chemical compounds in it like toothpaste or food.

Just weird. I was like ummmmm…..........

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2 Answers

SnipSnip's avatar

So you will make another unnecessary purchase.

canidmajor's avatar

The wax and polymers that it’s made of can degrade, and become brittle.

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