Worked with a tasting pannel ...

Worked with a tasting pannel for a large food manufacturing company.  It is not what you want to sell them that matters.  It is about the quality of water that doesn't affect the taste:  that depends upon the quality of water supplied to the food plant.  I worked with 17 manufacturing plants.  Some plants did some filtraion, some did nothing.  All had a city water supply.  I am now a consultant for some food manufacturing companies.  One has a well with considerable iron: it has to be treated.  I also so work for a couple of pharmaceutical companies: they require a wide range of pretreatment, and RO.