A/S Saeby Fiske-Industri is situated in Northern Jutland (Denmark) and is the largest producer of canned mackerel in the world with a production capacity of up to 300 million cans per year [23]. The factory processes mackerel, which are received as whole fresh fish and then gutted and de-headed. The fish are then frozen and stored at 32 C . The fish are taken out continuously as production takes place all year round. The skin is subsequently removed, and the fish are dry-cooked and cooled before entering the filleting process. Further processing steps involve adding brine, canning, autoclaving and storing [21].