what is the bad side effect of using empty plastic bottles?

One of those news shows on the idiot box (TV) said that it was a bacteria play ground. And something about the plastic in the bottle leaching out in to the water to contaminate and combine with saliva for a bacteria city! To fill them once might be okay, but should be recycled after that. Could be a ploy to sell more bottled water? Like as a water bottle? I don’t think there’s anything bad except that you need to wash it like any other dish/cup. Bacteria can grow on it. There are problems with heating and microwaving plastic though. Molecules get shifted around and dislodged. I don’t know more than that.

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I think one would be that the bottles can carry a lot of bacteria.like when you refill a water bottle instead of buying fresh. Especially in the fridge, it seems like the germs would grow. There will be no side effects if they are properly cleaned before using.

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reuse that bottle!Better to get a free one at every drinking fountain rather than waste money and plastic on new one. As long as you wash it well with soap and water, you’ll be 100% fine.Also, you’ll be helping the environment everytime you reuse. The plastic from the bottles people throw out takes hundreds of years to decompose.