Not sure. I have done the boil and chuck several times. Then the 2tbsp bicarb, then boil and chuck, then vinigar, then boil and chuck, then 2tbsp bicarb again then boil and chuck. It is slightly better but still majorly crap. I have tried filtered and nonfiltered water. Tastes the same. I am going to take it back tomorrow and see if i can swap it for another kettle.
kezza, March 2010