I’m posting this here instead of in the original thread because it’s off-topic.
From a post by @Railer13 in the Trump Is Dying thread:
I was curious about this, so I bought a 20-ounce bottle of Pepsi, poured it into a Mason jar, and dropped an ordinary, non-coated, non-galvanized steel 16-penny nail in it. I left it there for a week.
I used a milligram scale to weigh the nail. Before the Pepsi treatment, it was 6.635 grams. After the treatment, it was 6.544 grams. The surface of the nail felt smooth before, and rough after.
I suspect Railer13’s junior high science teacher pulled a fast one. It’s easy to make a nail disappear from a glass of Pepsi when no one is monitoring it.
This doesn’t have much to do with whether Pepsi is bad for one’s health. But whatever bad effects it does have, it’s not because Pepsi is so corrosive that it will dissolve a nail in a week.
In the same thread, @Joey_P speculated that it’s citric acid in Pepsi that removes concrete stains. It does contain citric acid, but also phosphoric acid. I don’t know which is more effective for that purpose.