Salami imapeza mtundu wake wofiira panthawi yopanga. Mchere wowonjezera wa nitrite umaphatikizapo pigment ya minofu (myoglobin) ndi nitrite, zomwe zimapangitsa mtundu wofiira wodziwika bwino. Njirayi imatchedwa reddening.
Ascorbic acid amawonjezeredwa kuti salami ikhale yofiira mwamsanga. Vitamini C wopangidwa mochita kupanga amagwira ntchito ngati chithandizo. Panthawi imodzimodziyo, imatsimikizira kuti soseji imakhalabe ndi mtundu wofiira ndipo salami imakhala ndi nthawi yayitali.