Why does water sometimes taste “dry”?

Question

You know how sometimes water has a really odd, dry mouth feel? Certain bottled water brands like Dasani even have a reputation of tasting “dry”.

In: 20

Answer 1

Usually if a liquid feels dry, it’s because it has a pH greater than neutral, ie it is basic or alkaline. The mineral content of bottled water can affect its pH, so it’s possible that this sensation comes from the water being slightly basic.