this post was submitted on 20 Nov 2024
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Fun fact: "Black olives, though labeled as “ripe” on supermarket cans, actually aren’t: these, a California invention, are green olives that have been cured in an alkaline solution, and then treated with oxygen and an iron compound (ferrous gluconate) that turns their skins a shiny patent-leather black."
https://www.nationalgeographic.com/culture/article/olives--the-bitter-truth
It's also the only food where ferrous gluconate is allowed to be in, at least in Germany (and EU I guess). For everything else it's forbidden.
Actual black olives exist, but they're expensive.
😦
What have I been buying from Del Monte for ~$4?
Green olives that have been artificially blackened.
Reverse-greenwashing.