hmm.. almost all i've tasted is sour...
coffee is sour when it oxidises...
instant coffee is almost always like that.. they had to make the
coffee then freeze-dry it...
and frankly, if you read what goes into the 3-in-1s and the
"non-dairy" creamers, you'll never ever drink that stuff ever
again... it's that bad...
i think for coffee, i'll stick to the kopitiam coffee, or brew the
stuff myself with a plunger 
