What do the recycling symbols on plastic bottles mean?

These are not 'recycling' codes. They are Resin Identification Codes that tell what kind of plastic it is. The number inside the triangle which is embossed on the bottom of plastic containers identifies the type of plastic from which the container is made The purpose for this is to make it easier for folks to sort and recycle.

The lower the number the easier it is to recycle as well They do have a triangle with arrows, but that doesn't necessarily mean you can recycle them. It depends on your local area what plastics can be recycled 1 PET(E) Polyethylene Terephthalate. This is most common of the disposable water bottles 2 PE-HD gh-Density Polyethylene (HDPE), example milk jugs 3 PVC Polyvinyl Chloride 4 LD-PE Low-Density Polyethylene 5 PP Polypropylene 6 PS Polystyrene 7 O(ther) plastic All other plastics.

One popular example are the hard (usually Nalgene) coloured bottles, made with bisphenol-A (BPA) More than ever people are concerned about the products in their lives, especially when it comes to plastic. There are concerns over the safety of some of the ingredients used in plastics, particularly bisphenol A. Fortunately there are codes on the bottom of all plastics which can help the health conscientious consumer stay informed See the link below for more information on what the codes mean and a guide to which plastics should be avoided due to potential toxicity.

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