Warning Issued Over Health Risks of Drinking Warm Bottled Water This Summer

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Warning Issued Over Health Risks of Drinking Warm Bottled Water This Summer

With summer just around the corner, health experts are warning of the “hidden health risks” associated with drinking from plastic water bottles that have been left in warm conditions.

As temperatures rise and we head outdoors to enjoy the sunshine, staying hydrated becomes increasingly important. According to the Eatwell Guide, adults should aim to drink at least six to eight cups of water a day. While water is the healthiest and most affordable option, lower-fat milk and sugar-free drinks, including tea and coffee, also contribute to our daily fluid intake.

However, health experts caution that drinking warm water from plastic bottles can be harmful. Sarah Lawson, a food safety expert from Storage Box Shop, advises against consuming bottled water that has been left in the sun or a hot environment, such as a car. The heat can cause harmful chemicals to leach from the plastic into the water,” Lawson explained.

The Risks of Warm Bottled Water

When plastic water bottles heat up, chemicals like BPA (Bisphenol A) and phthalates can seep into the water. These chemicals pose several health risks. Drinking water contaminated with these substances can lead to a range of health issues, including:

  • Stomach Problems: Nausea, stomach aches, and other gastrointestinal issues.
  • Headaches and Dizziness: Consuming these chemicals can cause headaches and feelings of lightheadedness.
  • Hormonal Disruptions: Long-term exposure to BPA and phthalates can affect hormone levels, potentially leading to more serious health problems over time.

Staying hydrated is crucial, but drinking water that has been left in the heat is not safe,” Lawson emphasized. Always keep your bottled water cool to protect your health.

Tips for Safe Consumption of Bottled Water

To ensure you stay safe while keeping hydrated this summer, follow these simple tips:

  1. Keep It Cool: Always store your bottled water in a cool place, away from direct sunlight.
  2. Use a Cooler: If you’re out and about, keep your bottled water in a cooler with ice packs.
  3. Check the Temperature: Before drinking bottled water, feel the bottle to check if it’s warm. If it is, it’s safer to get a fresh, cool bottle.


Hydration is key to staying healthy, especially during the hot summer months. However, it is important to avoid drinking water from plastic bottles that have been exposed to heat. Follow the advice of health experts and keep your bottled water cool to avoid any potential health risks.

For further tips on staying safe and healthy this summer, explore our recommended reading on topics such as the importance of SPF, the best times to drink water, and how to treat sunburned skin.

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