Pastry brushes are an essential part of dessert decorating. When shopping for a pastry brush be sure to chose the size of the brush that best fits your businesses needs. A pastry brush is as important as a tool can get for a bakery service establishment. Generally the handle material is wood, and the bristle material is hair. Materials of bristle hair can be boar hair or nylon hair. This tool is perfect for adding that extra glaze to any pastry dessert.