'Raw water': A dangerous new health craze?
Start-ups in the US have started selling untreated water, taken straight from wild springs, for £4 per litre.
But according to experts, drinking "raw water" can be dangerous unless it is boiled first.
Start-ups in the US have started selling untreated water, taken straight from wild springs, for £4 per litre.
But according to experts, drinking "raw water" can be dangerous unless it is boiled first.