1, and the unopened shelf life is 3 months. Drink it as soon as possible after turning on the water dispenser. It is recommended not to exceed one week. After the cause is turned on, it is easy to breed harmful substances such as bacteria due to the influence of equipment (drinking machine) and environment.
2. Long-term drinking is harmful to health.
3. Qualified purified water is not allowed to add any additives.
Personal opinion: As far as I know, pure water was originally used for industry. It was not born to make drinking water for people. Many medical experts suggest that people should not drink pure water in their daily drinking water, especially developing children, teenagers and the elderly. If you are interested, you can check the relevant information online.