Pressed candy also known as powder sugar or flake sugar, is often called soda sugar. It is a mixture of refined sugar powder as the main body, milk powder, spices and other fillers, starch syrup, dextrin, gelatin and other binders. It does not need heating and boiling, which is called cold working process.

The basic components of pressed candy are sweeteners, binders and disintegrators, as well as other substances. The mechanism of briquetting sugar is to reduce the distance between particles or fine powder to produce enough cohesive force by pressure. The contact area between loose particles is very small and the distance is large. There is only cohesion within particles, but no adhesion between particles.