What you likely saw is “stainless steel soap” — also called a steel odor remover bar.
It looks like a regular bar of soap, but it’s made from solid stainless steel and has no scent.
🧼 What It’s For
It’s used to remove strong odors from your hands, especially:
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Garlic
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Onion
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Fish
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Shrimp
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Cooking smells
🔬 How It Works
When you rub it between your hands under running water, the stainless steel reacts with sulfur compounds (the chemicals that cause strong smells).
This helps neutralize the odor instead of masking it.
🚰 How To Use It
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Hold it under cool running water.
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Rub it like you would regular soap for about 20–30 seconds.
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Rinse your hands.
No soap suds — just metal and water.
🏠 Why It Was by the Sink
It’s commonly kept in kitchens, especially by people who cook often or handle seafood.