Brunost the Norwegian dairy co-operative Tine, who market a total of 13 varieties, as well as three types of prim and three types of pultost. The second-largest is Norwegian dairy company Synnøve Finden, which market two varieties of brunost, as well as two varieties of prim. There are also a number of smaller, artisanal producers, mainly in Norway and in the US. Mysost are a family of cheese-related foods made with whey and milk and/or cream. Because the main ingredient, whey, is a byproduct of the cheese making process, brunost is not technically cheese, and it does not taste like cheese.
Fréjus Road Tunnel every 130 m, fed from large water tanks. There are 11 safety points along the tunnel, equipped with telephones and loud speakers connected to the control room, with a separate ventilation duct to supply fresh air. These are separated from the main tunnel by two fire doors; the outer door closes automatically when the temperature in the tunnel reaches a certain level. Finally there is a ‘thermal gate’ system at each entrance to identify any overheating vehicles. Despite these measures, on 4 June 2005, a fire caused the death of two Slovak lorry drivers, and the closure of the tunnel