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Why does milk have a longer time until the expiration date in paper?

Milk has a lot longer time until it expires if it is packaged in the paper containers. Why does it not last as long in plastic?

3 Answers

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  • 2 decades ago
    Favorite Answer

    That is because the paper is a more natural container, and does not contain the chemicals that plastic has. The paper has natural minerals and stuff in it that acts like a natural preservative.

    And like the other peops said, the light DOES go through the plastic but thats a minor thing, not enough to make more than a day of a difference!

  • 2 decades ago

    The light gets thru the plastic.

  • 2 decades ago

    Because light causes it to break down.

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