Saggars and Crucibles although they are quite different products, have been grouped together as they are both used as containers. Saggars are usually larger and used to protect or support products during firing, for example in the glost or biscuit firing of tableware, or for powder calcination, etc. These products can be made by semi-dry pressing, plastic pressing and casting. Crucibles are smaller containers used for the melting of materials, e.g. minerals and glass. Saggars and crucibles can be split into five sub-categories as follows: Round Saggars, Square Saggars, Special Saggars, Round Crucibles and Special Crucibles.