on the other hand, water is made in a glass prone to airborne particles and dust bacteria.
On the other hand, when the water is exposed to the atmosphere, which absorbs a small section of which becomes carbonic acid, carbon dioxide. To put it another way, this means that the water subjected to the atmosphere is prone to changes in their chemical structure. To be concrete, the carbon acid is converted to bicarbonate or carbonate when one or two protons is discharged, which alters the pH of water. Its flavor is also affected by this change.
Therefore, the next time you feel to wake up, thirst, just jump into your own kitchen and acquire some fresh water.