Remember the Nestle baby-milk scandal?

Four decades ago, in the developing countries of Africa, many young mothers did not have access to clean water. They were mixing milk powder with water taken direct from a stream or source that contained bacteria often deadly to young babies. 
Despite Thailand having come a long way in providing decent tapped water I think mothers in much of the country would be ill-advised to use anything but bottled or boiled water. 
It’s a point that the advertising might not mention, but failing to heed it could be fatal.
Lungstib
Chiang Mai