= Properties of Hard Candy = *Crystalline sugar based confection *Low water content and a hard, glassy texture *Not the same as rock candy *Rock candy has molecules tightly bonded in a lattice *Hard candy is amorphous/glassy *High viscosity prevents flow *Molecules packed closely together but randomly == Ingredients == *Sucrose, corn syrup, acids, colors and flavors *Other ingredients: Fats, milk ingredients, fruit juice etc. == Making Hard Candy == *Boil sugar syrup to 295-305F (148-152C) and cool rapidly *Add a id and flavor after cooking to prevent thermal degradation *The relationship between temperature and water content is governed by boiling point elevation *295-305F corresponds to a water content of ~ 3-4% == Cooling and Forming == *Once the candy mass has been cooked it can be formed into desired shape *Cool to intermediate temperature where mass has a plastic state *Alternative method: deposit hot liquid into mold == Stability == *Keep below glass transition temperature to maintain shape == Sugar Free Hard Candy == *To make a hard candy with a polyol must use an ingredient with a high Tg to prevent cold flow *Isomalt and maltitol meet this requirement *Follow some process to make *Possibly cook to a little higher temperature to reduce water content below 1% to raise Tg == End of Shelf life == *Depends on type of sweeteners *Too much corn syrup leads to stickiness *Too much sucrose leads to graining