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I hope not because there's nothing 'chemical' about that 'reaction'! I can see where they're BS'ing from, but I wouldn't trust it to have any discernible effect.Quote:
Blade sharpness is another by-product of shaving with cold water. If you recall the droning tone of your science teacher, you'll recall that metal contracts when it cools. This innocuous chemical reaction causes the molecules in your blade to contract, giving it a keener edge.
Is this meant to be serious?
Edit: Also, molecules contracting? No, no and no from me!