Radio-Frequency Identification, or RFID tags, are very helpful for automatic store checkout, simplifying warehousing, and preventing theft.  Some say RFID tags may even completely replace the barcode, which is most commonly used today.  They are able to store more information on minimal space and can be read quickly by readers.  Although RFID tags are very helpful for these purposes, The Blog of Packaging pointed out that RFID tags could interfere with recycling.

The Federal Environment Agency (UBA) performed a study that showed when melting waste glass, it could become less shatterproof or discolored if the recycled glass contains trace amounts of aluminum and silicon from RFID tags.

Something needs to be done to make RFID tags more eco-friendly, such as making them metal-free, easily removable, or stuck to the bottle labels instead of the glass.  Otherwise many losses will be seen from not being able to recycle these materials, which would increase the input of extraneous materials needed.