Understanding Recycle codes?

How many people really know what the triangle on the bottom of containers means besides recycle? Well there is a number which determines risk of chemicals that leach...Never USE BABY BOTTLES WITH A NUMBER 7 !!!

http://www.plasticfreebottles.com/pdf/Understanding-Plastic-Codes.pdf

Bisphenol A, or BPA, is a hormone-like chemical used in many plastics and lined cans so commonly used by consumers that nearly every American has been exposed.
The chemical is at the heart of worldwide scientific investigation and a debate over whether it is harmful to the very young.

Can Plastic Alter Human cells

I thought this was very interesting article FYI..
http://www.usatoday.com/news/health/bpa.htm