How long can bottled water be stored before it goes bad? 

Bottled water has become an increasingly popular choice for hydration on the go or in emergency situations, but many people wonder how long it can be stored before it goes bad. In this article, we will explore the factors that affect the shelf life of bottled water and provide some tips for ensuring its safety. 

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Firstly, it is important to note that the shelf life of bottled water varies depending on the type of water and how it is stored. The FDA has set an expiration date of two years for bottled water, but this is more of a guideline than a hard and fast rule. In general, if the water is stored in a cool, dark place away from direct sunlight and any potential sources of contamination, it can last for several years. 

One of the main factors that can affect the shelf life of bottled water is the type of plastic used to make the bottle. The majority of bottled water sold in the United States is packaged in polyethylene terephthalate (PET) plastic bottles, which are lightweight, durable, and easily recyclable. PET bottles are generally considered safe for storing water, but they can release chemicals over time that affect the taste and quality of the water. If the water has been stored in a PET bottle for more than six months, it may have a slightly off taste, but it should still be safe to drink. 

Another factor that can affect the shelf life of bottled water is the source of the water. Some bottled water brands source their water from natural springs or wells, while others use municipal water sources. Natural spring water is often considered the best-tasting and highest quality water, but it can be more expensive than other types of bottled water. Municipal water sources are generally safe and reliable, but they may have a slightly different taste or odor due to the treatment process. 

It is also important to consider the conditions in which the bottled water is stored. If the water is exposed to sunlight or heat, it can become contaminated with bacteria or other microorganisms that can cause illness. Bottled water should be stored in a cool, dark place away from direct sunlight, and it should not be stored in a hot car or other environment where temperatures can exceed 120 degrees Fahrenheit. 

To ensure the safety of bottled water, it is important to check the expiration date before drinking it. If the expiration date has passed, the water may not be safe to drink, even if it has been stored under ideal conditions. If the water has an off taste or odor, or if you notice any discoloration or sediment, it is best to discard it and get a fresh bottle. 

In conclusion, bottled water can be a safe and convenient option for hydration on the go or in emergency situations, but it is important to be aware of the factors that can affect its shelf life. By storing bottled water in a cool, dark place away from direct sunlight and checking the expiration date before drinking, you can ensure its safety and quality.