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Since the publication of Antoine Lavoisier's revised Easter Memoir in 1778, it has been understood (although not at first universally accepted) that acids generally are oxidising agents. However, I note that, somewhat unusually for an acid, formic acid can act as a reducing agent (the opposite of an oxidising agent). My understanding is that this unusual ...


Propanethiol S-oxide gas will stop the browning affect on the surface of avocados. This sulfur oxide is found in the gas formed from cutting bitter/sharp onions. When storing guacamole in a bowl, place a half an onion chopped inside a smaller bowl, then place the smaller bowl in the center on top of the guacamole. Then cover with saran wrap as to not remove ...

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