RPET (recycled polyethylene terephthalate) comes from plastic that has already been used for packaging, such as the plastic bottles, this plastic is sorted, cleaned and transformed so that it can be reused as a food product, as approved by federal authorities.
Therefore the bottles you recycle get a second life by becoming part of The Planet Bottle...
Interesting facts about rPET:

• Cubic yards conserved in a landfill by recycling PET beverage bottles:
  4,800 recycled 16-ounce bottles saves a cubic yard
  4,050 recycled 20-ounce bottles saves a cubic yard
  3,240 recycled 1-liter bottles saves a cubic yard
  2,430 recycled 2-liter bottles saves a cubic yard
  1,350 recycled 3-liter bottles saves a cubic yard
• Recycling a ton of PET containers saves 7.4 cubic yards of landfill space.
• According to the EPA, recycling a pound of PET saves approximately 12,000 BTU's.
• The average household generated 42 pounds of PET plastic bottles in the year 2005.
• Custom bottles (which are bottles used for products other than carbonated soft drinks) represent 62% of all PET bottles available for recycling.