Most flavor chemicals are liquids; however many food products require that the flavor is in a dry free-flowing form. For example, a dry flavor is necessary in situations where a flavor is to be incorporated into gelatins, dry beverage mixes, and dry cake and cookie mixes.
The simplest means of producing a dry flavor is to "extend" or "plate" a liquid flavor on a dry edible carrier. In the typical manufacturing process, the carrier is first added to a mixer (or blender) and the mixer is turned on to fluidize the carrier. The liquid flavor is then sprayed onto the carrier until the desired amount of flavor has been applied.
