Can I really drink mineral water?

There are two situations: first, if you have already opened and drunk, saliva contact will breed bacteria and you can't drink any more. Second, if it is unopened and not exposed to the outside air, it can still be drunk. Sure, open it if you want. Tip: about the shelf life of water: bottled water without steam seal can be kept for at least two years, while bottled water with steam can be kept for one year. Bottles should be sealed in a dry and cool place. Leaked bottles should be carefully sealed and kept for no more than one week. If you have opened a bottle of water, you should finish it in two or four hours.