VOLUME FEEDING (Quantity Food Production) The difference between small and mass food production is very difficult to define. Most food standards, principles and large number of techniques are the same. Some define quantity food production (for volume feeding ) as the production of 25 or more portions. A report compiled by the National Restaurants Association, lists food service units under two major grouping. 1.Commercial or those establishments which are open to the public, are operated for profit and which may operate facilities and / or supply mela service on a regular basis for others. 2.Non-commercial (as employee feeding in schools, industrial and non-commercial organizations), education, government of institutional organizations which run their own food service operations. Food services in schools and universities, hospitals and other transportation armed services, industrial plants and correctional units