There are lots of different types of plastics on the market, each with their own properties. Some plastics are a lot healthier and more environmentally friendly than others. They're more stable and easier to recycle. How do you tell the difference? Each piece of plastic should come with a resin identification code. That's the one on the bottom of most containers - a number from one to seven located inside the recycling symbol. Here's a look at the types of plastic, and which ones are best from a green perspective.
Type one is polyethylene terephtalate, also known as PETE or PET. This is what most disposable soda and water bottles are made of, and is usually clear. Plastic type two is high density polyethylene, or HDPE. Many milk jugs, detergent bottles, and toiletries bottles are made of this. It is often opaque.
Polyvinyl chloride, or PVC, is used to make meat wrap, bottles for cooking oil, and plumbing pipes, as well as garments. It's numbers as type three. Type four is low density polyethylene, LDPE, which is used to make grocery bags, cling wrap sandwich bags and other films. Plastic type five is polypropylene. Yogurt tubes and cups are often made from ...