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After using bottled water, it is best to use it within one week
Experts from the Department of Product Quality Supervision under the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China have issued a reminder to consumers about the proper handling of bottled water. Once a bottle is opened, it should be consumed within a short period—ideally within a week. If not used in time, it’s advisable to boil the water before drinking to ensure safety.
The experts also noted that even high-quality barrelled drinking water can become contaminated after delivery. Bacteria can easily multiply, especially during hot summer months when temperatures rise, accelerating bacterial growth. It's important to store bottled mineral water in cool, dark places and avoid direct sunlight. Additionally, public water dispensers can be a source of secondary pollution, so regular cleaning is essential. Water dispensers should be maintained and cleaned by the factory at regular intervals to prevent contamination.
When purchasing bottled water, consumers should pay attention to the quality of the packaging. High-quality bottles or barrels are typically made of PC (polycarbonate) material, which is clear, hard, and smooth. However, some manufacturers still use recycled plastics, often referred to as "black barrels," which are darker and less transparent. These materials are not only lower in quality but may also pose health risks. Consumers should be cautious and check for signs of poor quality.
The bucket cover should be bright, clean, and firm. When inverted, the bottle should not leak water. The inner plug should fit tightly to prevent any contamination. Qualified drinking water should be completely clear, odorless, and free of visible particles. If the water appears yellow, cloudy, has sediment, or has an unusual smell, it should not be consumed. Always trust your senses—when in doubt, it's better to err on the side of caution.