Ready-to-eat seafoods, such as cooked peeled shrimps, are demanding in terms of microbiological safety as they are often consumed without any further heat treatment. Therefore it is very important to prevent contamination after the initial heat treatment
in the processing (Miget, 1987). It has been shown that the microbiological status of cooked peeled shrimps is primarily a reflection of the hygienic conditions in the processing plants as the initial heat treatment reduces the bacterial load to very low levels (Ridley and Slabyj, 1978; Beckers et al., 1981; Zuberi et al., 1983; Valdimarsson and Magnu´sson, 1984).