Nickel-free stainless steels are of high interest for medical and dental applications, as well as consumer goods where contact with the skin is a consideration. In this paper Prof Efraín Carreño-Morelli and colleagues from the University of Applied Sciences and Arts Western Switzerland evaluate the MIM processing of the high-nitrogen content austenitic stainless steel P558. This is processed using a novel environmentally friendly binder that incorporates a polymer produced by bacterial fermentation.