Three of the first fifty trainees of the UNRRA Food Preservation Training Plant, preparing canned roasts United Nations Relief and Rehabilitation Administration CNRRA / 470 Shanghai, China -- June 1947 Following therir graduation from the six-week course in modern food processing, the trainees return to their respective home districts to set up community food preservation centers where local farmers will can their own surplus produce for the lean winter season, preventing spoilage and waste (Photo by Wipperman) Chinese National Relief and Rehabilitation Administration China Food industry -- China Home food processing -- China Ovens United Nations Relief and Rehabilitation Administration RM http://search.archives.un.org/s-0801-0006-0003-00011 S-0801-0006-0003-00011 Security level: Unclassified