HOW Onions Are Toxic (onions Are Big Magnet For Bacteria)

I have used an onions that has been left in the fridge, and sometimes i don't use a whole one at one time. So save the other half for later. Now with this info, I have change my mind...I will buy smaller onions in the future. I had the wonderful privilege of  touring Mullins Food Products, Makers of mayonnaise. Mullins is huge,and is owned by 11 brothers and sisters an the Mullins family.my friend,jean is the CEO. Questions about food poisoning came up,and i wanted to share what i learned from a chemist. The guy who gave us our tour is named Ed. He's one of the brothers, Ed is a chemistry expert and  is developing most of the sauce formula. He's even develop sauce for McDonald's. keep in mind that Ed is a food chemist whiz. During the tour, some ask if we really  needed to worry about mayonnaise, People are always worried that mayonnaise will spoil. Ed's answer will surprise you. Ed said that all commercially made mayo is completely safe. "It doesn't  even have to refrigerated . No harm on 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 talk about the quaint essential picnic, with the bowl of potato salad sitting on the table and how everyone blames the mayonnaise when someone get 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?). Ed says its 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, onions are huge magnet for bacteria, especially uncooked onions. You should never plan to keep a portion of a sliced onions. He says its not even safe if you put it in a zip lock bag and put it in the 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 in your hotdogs at the baseball park!)Ed says if you take the leftover onions and cook it like crazy you'll probably be okay, but if you slice the leftover onions and put it in your sandwich, you're asking for trouble.  Both the onions and the moist potato in the potato salad will attract bacteria faster than any commercial mayonnaise will even begin to break down. So, how's that for news? Take it for what you will. am going to be careful about my onions from now on. For some reason, I see a lot of credibility coming from a chemist and a company that produces millions of pounds of mayonnaise every year.' Also, dogs should never eat onions. Their stomachs cannot metabolize onions. Please remember it is dangerous to cut onions and try to use it to cook the next day, it become highly POISONOUS for even a single night and creates TOXIC bacteria which may cause Adverse Stomach infections because of  excess Bile secretions and even FOOD POISONING....