Ceramic sinks are made from natural raw materials, using traditional craftsmanship. Every sink is unique, which means that it is impossible to avoid minor tolerances in dimensions and colours. Due to manufacturing process, all ceramic sinks have a very hard, strong surface that is notable for being resistant to scratching, cutting and impacts. They are resistant to all domestic acids. However, damage may well occur if an exceptionally hard and heavy object comes into contact with the surface from a height. Ceramic sinks are extremely resistant to heat; they are not affected by normal kitchen temperatures. They are very easy to look after with the surface of the sink being particularly hard, with no crevices. These properties mean that dirt is unable to penetrate the material, so that wiping the dirt off the surface is all it takes to keep the sink clean. All ceramic sinks are light fast, which means you can put them in view of a window with constant sunlight, without fear of any discolouration. Sometimes lime scale build up can cause some discolouration but is easily removed with the correct cleaner (or some white wine vinegar).