There are several different types of chocolate that are available to the home cook for use in candy making: pure chocolates, confectionery coating, and chocolate chips. Pure chocolates contain cocoa butter and must be properly tempered in order to set up correctly. Tempering refers to a process of heating and cooling pure chocolate to ensure that the cocoa butter in the chocolate hardens in a uniform crystal structure. - See more at: http://www.hungryhappenings.com/p/chocolate-making-tips.html#sthash.pXpFYCER.dpuf