Why are seafood’s smells so strong and why are they so hard to wash off?
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There’s a few chemicals that are really dangerous even in low quantities and so are really important for your body to detect at low levels. The compounds involved with bad fish smell belong to one of these groups (specifically amines, which are also similar to ammonia which could indicate urine), so that’s why it’s generally so strong.
As for why it’s so hard to wash them off, not only do they trigger a strong response at low levels (meaning you’ll need to get rid of significantly more than you might think), but the smell-causing compounds interact with the oils and bacteria on your skin to be smelled, so you may have to wash more than just the direct fish compounds
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