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...but, I was just reading that if you are peeling really strong onions, if you hold two wooden matches between your teeth, with the surfur end out, the sulphur part will absorb the onion odor before they make you tear up.
As I mentioned... not sure if this works, but I'm really willing to give it a try. It takes me a mere couple of seconds attempting to chop an onion before my eyes begin to sting and the tears pour down my cheeks. Yes, the stinging is that bad. So, it is definitely a little technique that I'm going to try and I thought that I would pass it along for you guys as well!