Don’t Leave Plastic Bottles in Your Car This Summer

Hi, I’m Jason the water guy. Water is the most abundant and most important compound in the world. And you get a lot of fluff out there from people trying to sell their products. So I’m here to give my experienced opinion about what is good and what is not when you choose your best drinking water.

Water serves a number of essential functions to keep us all going… A vital nutrient to the life of every human cell. The carbohydrates and proteins that our bodies use as food are metabolized and transported by water in the bloodstream.

The below article is great because it answers a common question for water consumers around the world.

When summer arrives, remember to be aware of the dangers of leaving plastic bottles in your car. It may seem convenient to have a water bottle handy for on the go hydration, but the heat inside a car can affect the safety and quality of the water you plan to drink.

Plastic bottles, made from materials like polyethylene terephthalate (PET), can leach chemicals into water when exposed to heat. Although PET does not contain Bisphenol A (BPA) and phthalates, other chemicals can migrate from the plastic into the water, especially if the bottles are old or have been used multiple times. Some potential leaked chemicals are known to be endocrine disruptors, meaning they can mess with your body’s hormone systems. While the health risks of low level exposure are still debated, it’s best to minimize exposure to these chemicals for long term health.

Research has shown that chemical leaching increases with temperature and in hot cars the internal temperature can get well above 100°F (38°C) on a sunny day. This heat can speed up the release of chemicals from the plastic and contaminate the water inside the bottle. This is even worse if the bottle has been in the car for a long time.

Plus the taste and quality of water in plastic bottles can be affected by heat. The warmth can grow bacteria and algae, change the taste and odor. Even if the water is safe to drink from a microbiological standpoint, it may not be as refreshing or enjoyable because of these factors.

To minimize risks, consider using alternative containers like stainless steel or glass bottles. These are inert and don’t leach chemicals into beverages, making them safer for water storage especially in warm climates. Stainless steel bottles are durable, easy to clean and can keep drinks cold for a long time, perfect for hot summer days.

However, the easiest and most cost efficient solution is to continue to use plastic bottles, but take precautions to reduce heat exposure. Store them in an air conditioned room whenever possible and don’t leave them in hot cars ever. Opt for single use plastic bottles made from PET, which is generally safer than other types of plastic.

Side note: if in a country that does not hold natural mineral water, make sure your imported plastic water bottles are shipped in chilled reefer containers during summer. One famous brand, Lanjaron, for example is shipped chilled from Spain to the UAE. They use 19 degrees C and 50% humidity.

So while it’s nice to have water handy especially during hot weather, always prioritize the safety and quality of the water you drink. Be aware of the risks of leaving plastic bottles in your car and take action to minimize them and you’ll be safe and healthy all summer long. Oh and don’t forget to recycle. All PET is 100% recyclable.