1. Antioxidant ability depends on the life of hydroxyl ion, which can stay in water for no more than 18-24 hours.
2. Alkaline property measured at the pH level above 7.4 can last for about 1-2 weeks.
3. Micro cluster structure of 6 molecules per group can last for about 1-3 months.
Life time of each property varies depending on environment. If the water is kept at room temperature, it can last for 2 years. If kept in a refrigerator, frozen, or kept in a tightly sealed glass bottle, its properties can last unlimitedly. Because the water has calcium bicarbonate, if a plastic bottle is used, carbon dioxide (CO2) will be able to pass through and make a reaction with calcium bicarbonate, which will consequently result in calcium carbonate (CaCO2) not dissolvable in water. This will create sediments, and the alkaline property will decrease. Hence, water kept in a glass bottle can last longer than that kept in a plastic bottle.