It is best to drink cold boiled water, prepare a big glass pot at home, pour boiling water in before going out in the morning, come back at noon, mend it before going out in the afternoon, come back at night, mend it before going to bed at night and get up in the morning.
The mineral water bottle need not be twisted.
Health, environmental protection, health preservation, saving money and quenching thirst
Sorry, the answer is irrelevant.