There are two kinds of ceramics to refine sugar : the sugar-loaf mould in which sugar crystallizes and the recipes or molasses pots. Thèse jars used in great quantities by refiners were produced in various places but mostly in Marseille, Orléans and Bordeaux (Sadirac) during the XVIIth/XIXth centuries. Records and technical treatises of the XVIIIth and XIXth centuries as well as the materials dug out - in Sadirac particularly - émerge on a typology of chapes and sizes. Their making which fulfilled utilization necessities and accurate codification was very specifie, in particular concerning the moulds. Brognard reports observations he made in Orleans, but his description does not accountfor some of the characteristics which can be observed ...