Stiebs — Nature Elevated – Industrial juices, concentrates, … Stiebs is a multi-divisional importer and processor of industrial juices, concentrates, purees, and frozen food products. Industrial. We supply all types of fruit and vegetable ingredients for nearly Stiebs is a multi-divisional importer and processor of industrial juices, concentrates, purees, and frozen food products. Industrial. We supply all types of fruit and vegetable ingredients for nearly any food and beverage application. Learn More. Foodservice & Retail.