Recycling Revealed
Rumor
The number on the bottom of a plastic cup, bottle or container tells you how to use a product or package.Status
Nonsense!Origins
Although it’s origins are uncertain, this misconception has shown up in spurious media reports as well as a few misinformed websites.What You Should Know
This rumor is false and potentially dangerous.
Many plastic items are marked with a resin ID code – usually a number (1 through 7) or a letter abbreviation – which indicates a particular type of plastic. The code is typically found on the bottom of a container and is often displayed inside a three-arrow recycling symbol. Resin ID codes are used to help identify different plastics for recycling, but they do not provide guidance on the safe or intended use of a product and should not be used for this purpose.
For reliable information on using a plastic product or package, be sure to consult the packaging label and any additional instructions that may be provided.
- Use a product or package according to the instructions provided.
- Check the resin ID code and remember to recycle after use.
Note: Recycling facilities may not be available in all areas. Check to see if recycling facilities exist in your area.
More Resources and Information
- Resin Identification Code – Guide to Correct Usage
The Society of the Plastics Industry - Plastic Packaging Resins (by numeric code)
American Chemistry Council

