A machine and a color matching system used for quality analysis generally in the food industry, and specifically in coffee: Agtron spectrophotometers are used in the coffee industry and also in other lab applications for color matching, color analysis, sortingCoffee is sorted by size, density, and color in its preparation for export.: Sorting refers to several steps performed in the preparation of coffee for export. Coffee is..., and other scientific measurements. There are other devices but Agtron has been focused more on the coffee industry than other color analysis systems.