Our melon shaped porcelain jars have been designed for use in rapid mills and they can grind both wet and dry materials. They are available in three different capacities 0,3 litres, 1 litres and 1,5 litres. The jars are made of porcelain alumina. They are fired at high temperature and are free from porosity. Their hardness is above 8 on Mohs scale. The external surface is white glaze. The jars are supplied with nylon lid and seal. There are also jars with ceramic lids available. The gasket is no-toxic and the jars originate from the European Community.