As eating habits have changed, the portability and convenience of bars have enabled them to find many applications that have driven rapid and sustained growth.
Energy bars for endurance sports was an early use of the format, but was quickly joined by products aimed at the growing markets for healthy alternatives to confectionery bars, meal supplement and replacements, and satisfying, healthy snacks that can be eaten on the go.
Bars can be formed as individual ropes using a roll-fed filler block and die system similar to a wirecut machine. This technology has the potential to create filled as well as solid bars. A guillotine or water jet is used to cut the ropes into bars prior to baking. The other way of forming bars, which is commonly used for granola, is to form a loose sheet on an oven band then slit and guillotine into bar shapes after baking.