What is kettle scale?

Kettle scale, also known as limescale, is a hard, chalky deposit that forms inside kettles and other appliances due to the evaporation of hard water, which contains high levels of calcium and magnesium salts. Over time, these minerals accumulate and create a buildup that can affect the efficiency of the kettle and alter the taste of boiled water. Regular descaling can help maintain the kettle's performance and prolong its lifespan. Using descaling agents or natural substances like vinegar can effectively remove kettle scale.