I live in an area that has very hard water.
I do not use a water filter. After I boil water, particularly in a pot made of enamel, there is a very noticeable while powdery film left on the inside of the pot. Same thing with my stainless steel pots.
I have heard that the use of white vinegar will remove this mineral residue. What is the process - a teaspoon of white vinegar in a pot of boiling water, and for how long?
Is this white powdery substance calcium?
And yes, I know I should use a water filter. My tap (what?!) water tastes fine, so I don't find the need to use a filter, but I don't like seeing all this white stuff coating my pots. I do believe that filters would result in cleaner and fresher tasting foods, for the record.