Sometimes you would not like to drink tap water and instead you buy a plastic bottle. Always there is a triangle and the number printed on the top middle of it.
In the past you were interested to know the water composition but you did not pay any attention to the chemical composition of the packaging. This article helps you to know the hidden information about each number.
you can notice that plastics type 2,4 and 5 or the ones with label HDPE, HDPE and PP do not emit chemicals. on the other hand, worst packaging has labels 1,3,6 or 7. Such type of bottles the water is under chemical and temperature activity and in a case of extra filling it is exposed to bacterial pollution.