... to your healththe Nano nergy Cup work instructiona, Clean the cup with hot water before you use it, in order to ... , one minute is enough, just keep water in the cup for one minute before drinking ,( you can ... 3, After one month, keep the water in the cup for 3 minute before drinking.( you can ... should appropriately prolong the time that keep water in energy cup. As the acidic of purified water is too ...