The benefit of distilled water is that it is pure water with minerals and other contaminants removed during the distillation process. The demineralised water is suitable for use in lead-acid batteries, automotive cooling systems, and other applications where mineral buildup is an issue.
Distilled water is beneficial in industrial and laboratory applications, but may be harmful to humans when used for consumption and cooking. Due to the absence of beneficial minerals such as calcium and magnesium, the consumption of distilled water negatively affects human health, according to Frantisek Kozísek. Additionally, Kozísek argues that due to the aggressive nature of distilled or soft water, there is more mineral and element loss when food is cooked in soft water.