This special edition of the International Dairy Journal contains publications of the latest work on fermented milk products, presented at the IDF symposium on Science and Technology of Fermented Milk that was held in conjunction with the IDF Symposium on Microstructure of Dairy Products in Tromsø, in the far north of Norway, 7–11th of June 2010. http://www.idffer2010.no/. The symposium was arranged in connection with IDF Dairy and Technology Week, 2010.