I recently came across a list explaining the numbers on the bottom of plastic containers, and thought it was helpful information. This is taken from Real Simple--click here for the rest of the article:
Wondering about the little numbers on your milk container? They identify what the container is made of — and what it will be in its next life.
1 PET (polyethylene terephthalate): Soda bottles; recycled into pillow fill.
2 HDPE (high-density polyethylene): Plastic milk bottles, detergent bottles; recycled into new detergent bottles.
3 PVC (polyvinyl chloride): Take-out boxes, shampoo; recycled into drainage and irrigation pipes.
4 LDPE (low-density polyethylene): Grocery bags, shrink wrap; recycled into new bags.
5 PP (polypropylene): Yogurt containers, bottle caps; recycled into plastic lumber.
6 PS (polystyrene): Packing peanuts; recycled into plastic lumber, cassette-tape boxes.
7 Other: Includes squeezable ketchup bottles and microwavable dishes; these items can’t be recycled.
It's interesting to see what happens with these products if we take the time to recycle! Do you know which plastics you can recycle in your area? Unfortunately, our drop-off only collects 1-4.