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So when you go to brush your teeth you don't wet the toothpaste and toothbrush from the tap? Is it the fear of tap water that centers around this? I am curious

by b2w 1y ago

So when you go to brush your teeth you don't wet the toothpaste and toothbrush from the tap? Is it the fear of tap water that centers around this? I am curious about this as it seems the answers carry some cultural significance.

ixfo 1y ago
No - toothpaste is in part an abrasive. If it's wetter, the abrasive is less effective at removing biofilm/plaque, and the chemical components are diluted in situ. Your mouth is plenty wet enough as-is.
- alpaca128 1y ago
  That implies toothpaste isn't designed with this water dilution in mind, as that is common practice. If I don't wet it beforehand it's too thick and doesn't get distributed as easily.