I suppose that having a small amount of silver or even just copper touching the water can seriously prolong its shelf life, so to say.
Also, putting sterilized water into airtight sterilized containers, as normally done with beer, works well. Carry a can of Liquid Death with you instead of a can of Bud, the weight is the same.
Also, putting sterilized water into airtight sterilized containers, as normally done with beer, works well. Carry a can of Liquid Death with you instead of a can of Bud, the weight is the same.