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Why does the smell of onions linger on your hands long after you have been cutting them? Even after washing your hands. I have heard that stainless steel remove odors from hands? Is it true?

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    To those who are thinking of answering: I am pretty sure that this will turn out to be a duplicate of cooking.stackexchange.com/questions/1915. So if you can explain a difference in removing onion and garlic smell, please do so! If you can't, please check before posting if your answer isn't covered already in the other question - if this one turns out to be a duplicate, it would make sense to close or merge and only have one question for both. – rumtscho Oct 15 '18 at 8:23
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    Possible duplicate of How do you remove garlic smells from your fingers? – Zeina Oct 15 '18 at 11:38
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    I disagree with the close. We cannot know if it is the same answer without an answer. – paparazzo Oct 15 '18 at 17:34
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There are some specific food scent removal soaps. I keep some made by 'method' by my sink. https://methodhome.com/products/kitchen-hand-wash/

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Rubbing your hands on sides of a stainless steel knifes works for me. When you're done with the cutting, rub you fingers on the flat side of the knife (being careful of the blade of course!) under running cold water as if you were cleaning the knife. Do this a few times and then wash your hands and the knife with dish soap and water. It removes all the smell from my hands everytime.

Also there are various specialist hand washes available for removing food odors as ChefHopeful mentioned in his answer.

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    A stainless steel faucet will do the same trick with far less risk of accidentally cutting your fingers. – Allison C Oct 17 '18 at 19:07
  • @AllisonC: The risk involved here is far less than the risk of accientally cutting your fingers when you use a knife for anything at all. Not every household has a stainless steel faucet. – Ess Kay Oct 18 '18 at 9:56
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This might not exactly be an answer to the question but I do think that prevention is an alternative solution. I just prevent the issue all together by using disposable gloves when cutting onions, garlic and other strong smelling items. I personally prefer to use nitrile gloves as I find latex gloves to leave a horrid smell of there own.

Though if you have already fouled up your hands I find rubbing them with lemon juice does help. If using a recipe using freshly squeezed lemon juice you can keep the rind and flesh and rub your hands with that after cutting the onions.

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