Thought this is interesting and wanted to share it.....
Subject: DON'T KEEP CUT ONIONS -Very Interestin facts!!
>
> Written by Zola Gorgon - author of several cookbooks..
> Watch out for those spoiled onions...
>
> I had the wonderful privilege of touring Mullins Food
> Products, makers of mayonnaise. Mullins is huge, owned by
> brothers and sisters in the Mullins family. My friend,
> Jeanne, is the CEO.
>
> Questions about food poisoning came up, and I wanted to
> share what I learned from a chemist.
>
> The man who gave us our tour is named Ed. He's one
> of the brothers. Ed is a chemistry expert involved in
> developing most of the sauce formula.(He's even
> developed sauce formula for McDonald's.)
>
> Keep in mind that Ed is a food chemistry whiz. During the
> tour, someone asked if we really needed to worry about
> mayonnaise. People are always worried that mayonnaise will
> spoil. Ed's answer will surprise you.
>
> He said that all commercially-made Mayo is completely
> safe.
>
> "It doesn't even have to be refrigerated. No
> harm in refrigerating it, but it's not really
> necessary." He explained that the pH in mayonnaise is
> set at a point that bacteria could not survive in that
> environment. He then talked about the quintessential
> picnic with the bowl of potato salad sitting on the table
> and how everyone blames the mayonnaise in it when someone
> gets sick.
>
> Ed says that when food poisoning is reported, the first
> thing the officials look for is when the victim last ate
> ONIONS and where those onions came from (in the potato
> salad?).
> He says it's not the mayonnaise (as long as it's
> not homemade Mayo) that spoils in the outdoors.
> It's probably the onions, and if not the onions,
> it's the POTATOES. He explained that onions are a huge
> magnet for bacteria, especially uncooked onions.
>
> You should never plan to keep a portion of a sliced onion.
> He says it's not even safe if you put it in a zip-lock
> bag and put it in your refrigerator. It's already
> contaminated enough just by being cut open and out for a
> bit that it can be a danger to you. (And doubly watch out
> for those onions you put on your hotdogs at the baseball
> park!)
>
> Ed says if you take the leftover onion and cook it like
> crazy,you'll probably be okay, but if you slice that
> leftover onion and put it in your sandwich, you're
> asking for trouble. Both the onions and the moist potato
> in a potato salad will attract and grow bacteria faster
> than any commercial mayonnaise will even begin to break
> down.
>
> So, how's that for news? Take it for what you will. I
> (the author) am going to be very careful about onions from
> now on. I see a lot of credibility in this info, coming
> from a chemist and a company that produces millions of
> pounds of mayonnaise every year.
>
> (Dogs should never eat onions.. Their stomachs
> cannot metabolize them.)
>