As you know chmical released by plastic water bottles can cause cancer (It is not the water that affects you a but the chemical released from the bottle)

How to avoid: Check the bottom of the bottle there should be a triangle sign and there will be a number on it. If the number is higher than or equal to 5 --> then this bottle is safe to use. Numbers under 5 will
release the chemical. For most bottled water, the number is 1.

Remember to check and stop reusing those bottles.

Quote Originally Posted by indianbaba
That was a warning bell!
That's true indianbaba. Because, when I saw this for the first time, I was also surprised and I checked the bottle that I was using here. I found the number written as 4. Also there was a symbol PET written there. The brand of bottle that I was using is Pearl Pet. I will change my bottle now.