Distilled Water: Does It Expire Or Spoil?

Distilled water does not go bad in the traditional sense due to its purity. However, its quality can degrade over time if not stored properly, especially if exposed to contaminants or. Distilled water does not have an expiration date, as it does not spoil like other types of beverages or food. However, if the distilled water has been exposed to the air for too long, it. Distilled water can expire, although its less likely to go bad compared to normal tap water.