Look at the bottom of your water bottle, do you see a number?Created by:
They are resin identification codes and here are what they mean! :)
#1 PET/PETE (Polyethylene Terephthalate)
Usually clear and commonly used in water bottles and soda bottles. Safe for single use but repeated use allows bacteria to accumulate. PET water bottles left in a hot car or exposed to heat leak antimony in very little amounts, and a study in UK confirms that antimony leakage from PET into beverages due to time and temperature changes reaches approximately 1% of the current tolerable daily intake (TDI) established by World Health Organisation (WHO). So in theory it is still okay to drink them.
#2 HDPE (High Density Polyethylene)
Typically opaque and considered safe and has a lower risk of leaching. It is NEVER safe to reuse an HDPE bottle as a food or drink container if it didn’t originally contain food or drink. Used in milk jugs, household cleaner containers, cereal box liners, detergent bottles, motor oil bottles, yogurt tubs, and butter tubs, detergent bottles, juice bottles, butter tubs and toiletries bottles.
#3 Vinyl or Polyvinyl (PCV)
Used to make food wraps, detergent containers and commonly on plumbing pipes, window profile, shampoo bottles and even used as specimen containers and other medical devices. May leach out phthalates which act as binding agents and makes plastic flexible. Exposure to this chemical has been linked to an array of diseases, from congenital defects, diabetes, 3. May also contain DHEA which can be carcinogenic. Do not cook with this plastic or heat food with this wrap. Do not reuse as food container.
#4 LDPE (Low Density Polyethylene)
Used to make toys, food wrap, carrier bags, squeeze bottles, high frequency inculation, chemical tank linings, gas and water pipes to name some.
#5 PP (Polypropylene)
Safer Plastic to use for food containers. Used in ketchup bottles, yogurt cups, medicine bottles, etc.
#6 PS (Polystyrene)
Styrofoam, which is used for disposable cups, plates, egg carton disc cases, etc. FDA has considered It safe to use in contact with food.
Other plastic resin that does not belong to the first 6 categories. Their use range from nylon, computer cases, large water containers to bulletproof materials and sunglasses.
The Plastics to avoid on food consumption are 3,6 and 7 while those that are considered relatively safe are 2,4 and 5. One is good for one time use only.
6. Old school notes