Meet the water sommeliers: they believe H₂O can rival wine – but would you pay £19 a bottle?

Meet the water sommeliers: they believe H₂O can rival wine – but would you pay £19 a bottle?

During a fuller tasting session after lunch, Binder guides me to the opposite end of the scale with a glass of Vichy Célestins (£9), from the spa town of Vichy in central France. Its huge TDS of more than 3,300 (UK tap water tends to be below 400) is evident the second I take a sip. It takes me a mo...