"Health is the crown on the well man's head that only the sick can see." 
Author unknown

When I double distill H2O for CS making,it has a slightly bitter taste.I use a 
special made xformer  at 27 V,rectified and smoothed to 32 VDC open circuit.In 
32 oz. of H2O at 1ma I let it run approx 12 to 14 hrs.This has a very slight 
metallic taste,no cloudiness and no agglomeration.When I want it for the best 
tasting coffee and drinking[single distilled H2O],I add approx. 35 to 40 drops 
of Concentrace  minerals per gallon[US].This brings the Ph up to approx 7.1and 
sweetens the taste.
Harold