Best Practices for Storing Opened Distilled Water

Distilled water is used for various purposes, such as in medical procedures, laboratory experiments, and even for drinking. Unlike tap water or other types of bottled water, distilled water has undergone a process that removes impurities and minerals from it. However, once you open a container of distilled water, the risk of contamination increases. In this blog post, we will discuss how to store opened distilled water properly so that its purity remains intact.

Why Proper Storage Matters?

Distilled water contains almost no minerals or nutrients compared to regular drinking water. Therefore it’s more susceptible to picking up contaminants during storage due to its low mineral content. For instance, the absence of chlorine makes it easier for bacteria and fungi to thrive in an exposed environment.

Moreover, when stored improperly at room temperature for longer periods or exposed to light sources like sunlight or fluorescent lighting fixtures can damage the quality over time by altering pH levels and allowing bacterial growth within the container.

Store It In Dark Places

The first rule of storing opened distilled water properly is avoiding exposure to light sources as much as possible because they can cause algae growth inside the container containing it which ultimately affects its quality over time.

To minimize exposure to light sources:

  • Keep your opened containers away from direct sunlight.
  • Store them in dark places like cabinets.

Airtight Containers are A Must!

Airborne particles also play a significant role in contaminating already-opened containers filled with distilled-water since these particles contain microbes that thrive on moist surfaces. That’s why keeping them sealed air-tight should be one major priority while storing.

Make sure you have an appropriate-sized air-tight container available beforehand so that airflow around the contents would remain limited – thus minimizing possible contamination risks.

Fridge Is Your Friend

Storing distilled water once it is opened in the refrigerator can help prolong its shelf life. The colder temperature inside the fridge slows down or stops bacterial growth and oxidation.

However, before you put your container of distilled water in the fridge, ensure that it’s sealed tightly to prevent any unwanted particles from entering through the gaps.


Storage care is essential for keeping opened containers of distilled water pure and safe for consumption. Avoid exposing them to sunlight, airborne microbes while rushing to air-tight storage methods such as refrigeration along with keeping them away from toxic chemicals and cleaning agents will drastically reduce contamination risks over time. It’s better not to take chances when dealing with something as important as our drinking-water – a bit of extra precaution goes a long way!

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