Other than a little patty shrinkage, the burger look essentially the same.

A few years ago, atwelve-year-old McDonald’s burgersurfaced that looked shockingly well-preserved.

Prepared with grill seasoning (salt, black pepper).

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There are other evidences of McDonalds indestructible burgers.

University of Nottingham chemistry professor Martyn Poliakoff dunk the whole thing in a vat of concentrated hydrochloric acid.

The hydrochloric acid in the stomach is very diluted.

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But see what happens when you put the burger in concentrated hydrochloric acid.

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