Plastic bottle numbers indicate safety for reuse

Plastic bottles have a triangle with a number from 1 to 7 called the Plastic Resin Code, which indicates the type of plastic and its safety.

Number 1 (PET) is for single-use bottles; reusing them can release antimony, a dangerous chemical.

Number 2 (HDPE) is considered the safest plastic, commonly used for milk cans and shampoo bottles.

Number 3 (PVC) is toxic and contains cancer-causing chemicals like lead and phthalates; avoid food contact.

Number 5 (PP) is the safest plastic for reuse, used in lunch boxes and baby bottles, and is microwave-safe.