Water can’t go bad as it were. Food goes bad because the chemicals in food are consumed by microbes and often turns the food toxic. Exceptions like cheese exist but those are rare as even reactions we want like brewing result in toxic chemicals like ethanol to form. If you have a container of pure water it will never go bad. That said if there is sugar in it or minerals in it those can be used by microbes to form the hazardous chemicals but the water itself is fine where something like a steak wouldn’t be. You can distill even the most nasty water and drink it just fine with very few exceptions.
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