Table salt or sodium chloride contains very small amounts of chlorine.
Undissolved salt left in the bottom of your stainless saucepan can lead to the appearance of indelible marks.
These marks pose no health risks and will not hinder your use of your cookware, thanks to the thickness of stainless steel used in the manufacture of CRISTEL® products.
Always put salt in boiling water and stir until it dissolves completely.