Have you ever checked the bottom of your plastic water bottle or other plastic beverage and food containers that you use on a daily basis? There are six different types of plastic resins that are commonly used to package water and beverage containers, foods and household products. A numerical coding system was created by the Society of the Plastics Industry in the late 1980's.
Provided below is the identification coding system that can be found on the bottom of most plastic bottles and packaging.
Safest Plastic: As long, as they have not been in the heat and are not old or reused (up to 2 months from bottled date is considered safe). These unsafe conditions can cause leaching of plasticizer chemicals called phthalates. Recycled uses: Fiber fill for pillows, quilts and jackets, clear sheets for VCR and audio cassettes, go back into the bottle market
Deli soup containers, most Rubbermaid containers, cloudy plastic baby bottles, ketchup bottles, other cloudy plastic bottles.
Recycled uses: Not commonly recycled; a suggested plastic to avoid
Recycled uses: No recycling potential, must be land filled, a suggested plastic to avoid
See recent US News Article - "EPA Rethinks Plastic...
Reusing your water bottle is terrible for your body; studies show dangerous levels of bacteria accumulate on and in the bottle as you reuse it., as it becomes worn or scratched which will leach more toxins, contaminating the water or beverage.
Keep your bottled water away from cleaning compounds, paints, gasoline, or other household or industrial chemicals. Do not store it in the garage or in direct sun light.