Is it safe to refill a PET bottle?
Yes. The PET bottle itself poses no danger when refilled. PET is an inert plastic and does not leach harmful amounts of materials into its contents, either when a beverage is stored unopened, or when bottles are refilled or frozen. The PET container has been safely used for many years and has undergone rigorous testing under U.S. Food and Drug Administration (FDA) guidelines to ensure its safety as a food and beverage container suitable for storage and reuse.
Opened bottles can harbor bacteria, however, as will mugs, glasses or any other beverage container. PET bottles are no more likely to foster bacteria than any other packaging or drink container. Ideally, all drinking containers—including PET bottles—should be washed with hot, soapy water and dried thoroughly prior to reuse.
Refillable PET carbonated soft drink bottles have been used in Latin America and Europe for many years with no safety issues. Bottles are washed carefully before refilling. Consumer preferences led to one-way bottles use in North America
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