What critical properties should drinking water possess?

Drinking water should have sufficiently low levels of dissolved salts and microbes to ensure safety and quality for human consumption. High levels of dissolved salts can lead to water hardness, which may not only affect taste but can also cause health issues if consumed in excessive quantities. Furthermore, the presence of microbes like bacteria and viruses can result in serious health risks, including waterborne diseases.

Therefore, the critical property of drinking water is its ability to remain free from harmful microorganisms while maintaining a balance of dissolved substances within safe limits. This ensures that it is clean, safe, and healthy for people to drink, making it essential for both public health and overall well-being.