If a product with an expiration date is used immediately after that date passes, what realm does the user enter?

Answer

A realm of potential safety compromise.

When an expiration date is passed, using the product moves the user from dealing with diminished quality into an area where there is a potential safety compromise due to microbial growth or breakdown of active ingredients.

If a product with an expiration date is used immediately after that date passes, what realm does the user enter?

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Difference between Shelf Life, Expiry date, Use before ... - YouTube

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