Beware of plastics?

Today, during material science lecture, the lecturer told us about the number at the bottom of our bottles.

They are called RESIN?

 I found it intersting so I shall share it here :D

It ranges from 1-7~~~~
1- u only can use once!
3- is not for food...(for piping) very dangerous??
6- u cant have to high temperature stored in it? cos the chemicals will leak out :O
7- should be the best?? with BPA free??


useful info:
I also heard  that the plastic bottles for the liang cha (herbal tea?) also not quite good?
bcos they usually pour the hot tea directly into the bottle~
sooo.... the chemicals will leak! :O

NOTE: I don't think all stalls do that lah?

hmmmm how scary plastic is......
even the plastic milk bottles are not safe!

so..................

Beware of Plastics!!!!!!!!!!

just kidding :P

end of post~