Burnishing is a technique performed when the clay is in a leather-like consistency (firm but still wet). It consists of rubbing the surface with smooth tools, such as polished stones or a metal spoon, to compress the clay particles, creating a smooth, shiny finish without the need for glaze.
This technique has been used by various cultures for decorative and functional purposes, and today remains popular in handmade and low-temperature ceramics, such as raku. In addition to its aesthetic value, burnishing reduces porosity, improves surface strength and allows glossy or satin finishes depending on the method used.
Interesting Fact
Burnishing was used in many ancient cultures, such as the Greeks and Romans, to decorate and seal the surfaces of ceramic pieces, making them more resistant and aesthetically appealing.
Helpful Tip
Burnish the piece when the clay is in the right state (leather-hard). If the piece is too wet, it may warp; if it is too dry, the surface may crack.
