Consequently,
Bottle water: can we drink:
In France, more than 8 billion liters of bottled water are consumed each year (European federation of bottled waters, 2023). Moreover, Suffice to say that the plastic bottle is part of our daily life. Similarly,
But over time. Meanwhile, especially if it is open or exposed to heat, the water it contains is no longer really the same. However, Should we fear chemicals, microplastics or bacteria? And how long does an already started bottle remain drinking?
Plastic, a container not so neutral – Bottle water: can we drink
Migration of chemicals – Bottle water: can we drink
Mineral or source water bottles are made of PET (terephtalate polyethylene). This material is considered safe by the European Food Safety Authority (EFSA). but it can release certain compounds in bottle water: can we drink very small quantities.
Among them, antimony, used in the manufacturing process. Studies have shown that this metal can migrate into water, especially if the bottle is stored at high temperature. Under normal conditions, the content remains much lower than the limit set by the World Health Organization (20 µg/L).
Microplastics: a topical subject – Bottle water: can we drink
In 2023. a study published in PNAS (Proceedings of the National Academy of Sciences) revealed that bottled water could contain up to 240,000 fragments of microplastics per liter.
Some of these particles would come from the container itself. Their effects on human health are still poorly understood, but research is progressing quickly.
Bacteria: the other danger
An open bottle is a fragile bottle
If the bottle is already started. the risk is no longer only chemical. As soon as you drink the neck, bacteria in the mouth can bottle water: can we drink colonize water. And if the bottle drags in the sun or in a bag, the heat acts as an incubator.
According to a survey carried out by public health in 2022 on water consumption, bacteria as E. coli or staphylococci Can develop rapidly under these conditions, causing benign digestive disorders … but unpleasant.
How long to keep an open bottle?
The federation of bottled water companies (mineral water house) recommends consuming an open bottle within 24 to 48 hours if it is kept at room temperature. and up to 5 days if it is refrigerated and properly closed.
Good practices to adopt
- Keep cool. out of light: avoid leaving a bottle in a car or on a window sill in summer, where the temperature can exceed 50 ° C.
- Carefully close the bottle after each use to limit contamination.
- Avoid drinking at bottle water: can we drink the neck if the bottle should be shared or kept more than a day. Simply use a drink.
- Favor reusable containers (stainless steel. glass), which do not relaar chemical substances and limit the use of single -use plastic.
Clearly, a sip of forgotten water is not necessarily dramatic, but to preserve your health, it is better to avoid.
NAMELY
A study by the University of Arizona (2015). relayed by the National Sanitation Foundation (NSF), has shown that the reused plastic water bottles could contain, after several days of use, up to 300,000 bacterial colonies per cm², more than on … the bowl of a dog or the toilet bowl.
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