A manufacturing company is claiming a world first when it comes to sausage casing.
Devro has claimed to have developed the first casing made purely from pork collagen.
Chief executive Dr Graeme Alexander said that until now edible collagen casings have been based on beef protein, with the only alternative being based on animal intestines.
"While pork sausage makers have been asking for a pork collagen casing for years, it's not been considered technically or economically feasible.
"Initially, market development for this new range will be directed towards European applications for processed sausages such as frankfurters."