...what type of plastic is allowed in the recycling bins at the grocery stores?Many of the collected grocery bags end up going to Trex, a company which turns grocery bags, stretch films (like the kind used to wrap loaded shipping pallets), and waste wood into recycled plastic decking, railings, fencing, and landscape edging.
I was just cutting the paper labels off some clean, dry bags, and realized that they feel very different from one another, and that some have numbers and a recycling symbol and others don't...( I found 1, 2, 4, and 5!)
...so please, tell me what I should be doing!
Here are the Trex specifications for the grocery bags they accept: http://www.trex.com/Suppliers/grocery.asp
In a nutshell, they want bags made from polyethylene, which is resin #4.
A quick tipsheet for interpreting those other resins mentioned in the specifications:
PVC: resin #3
polystyrene: resin #6
polyurethane foam: if labeled at all, should be resin #7
polypropylene: resin #5
Thanks, M. -- great question!