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Old 06-19-2006, 05:04 AM
gabriela gabriela is offline
Join Date: Mar 2006
Posts: 1,158
Outside any of my areas of expertise here (your Honor, the witness is being called on to speculate, she hasn't been qualified as an expert in onion cutting) but I think one tears up while onion cutting from the release of irritating gaseous organic compounds. Is one of them cysteine sulfoxide?

If a person were using a sufficiently absorbent piece of bread, it might take up enough of the gas to let the rest dissipate, and keep her eyes from watering. And that might be the start of the idea. Another person using a piece of bread that was thinner or older or less absorbent right out of the package (or oven) might not get significant absorption, and that might be why it didn't work.