Helps Keep Pots From Boiling Over When Cooking Great For Cooking Potatoes Pasta Hard Boiled Eggs and More Key Product Features May be used over and over Food Safe Made from specifically sourced white clay May be used over and over Food Safe Made from specifically sourced white clay Great For Cooking Potatoes Pasta Hard Boiled Eggs and More Key Product Features Prevents frustration of cleaning messy stovetops after spill overs