 West Liberty Foods maintains separate facilities for research and development and laboratory testing services . They are housed in adjacent buildings several blocks from the plant in West Liberty . The R & D facility includes testing space for both raw and cooked product , and can create test products from start to finish , including initial formulation , final slicing , and packaging . The lab conducts product quality testing for the three production facilities and uses polymerase chain reaction ( PCR ) technology for rapid bacteriological testing . This system can return results within 30 hours of production . 
