4 ms·Skin gets into the onion.by b112 1y agoSkin gets into the onion.malfist 1y agoIf the skin gets into the onion when you cut it in half, you need a sharper knife my friendb112 1y agoIt just happens. Small pieces do, and some people don't like it. There are some onions with really flaky skin, some with firmer skin. Could be why some do, and some don't.malfist 1y agoIf it happens cutting an onion in half then it'll also happen when you core the ends.