Why can't tap water be drunk directly, but fruits washed with tap water can be drunk directly?

If some netizens didn't ask this question, it seems that I really didn't delve into the reason. Growing up in nature, I think this is a very common thing, and there is nothing wrong with it.

I thought about it for a while, and I think it can still explain this. Tap water just can't be drunk directly, because there may be bacteria, and it needs high-temperature sterilization to prevent diseases, but a small amount of tap water is not a big problem when you drink it in your stomach, and the tap water left on the fruit is almost negligible. On the contrary, if the fruit is not washed directly, it may cause adverse reactions such as diarrhea, because there are many pesticide residues on the surface of the fruit. Although tap water can't be washed away, it can be removed more or less. Moreover, many fruits will be peeled before eating, so tap water will not be eaten in the stomach, and even if it is not peeled, it will be dried with a paper towel. So why can't fruits washed with tap water be eaten?

Fruit is a good thing. There's no harm in eating more. It's best to eat without skin. Although there are a lot of nutrients in the peel, there are also a lot of pesticide residues. Unless planted at home, it is difficult to rest assured.