Jarlsberg
Jarlsberg is a mild cheese made from cow's milk, with large, regular eyes, originating from Jarlsberg, Norway. It is produced in Norway, as well as in Ireland and the US state of Ohio, licensed from Norwegian dairy producers. It is classified as a Swiss-type cheese. Jarlsberg cheese has a yellow wax rind (outer layer) and a semi-firm yellow interior. It is a mild, buttery cheese. The flavour has been described as "clean and rich, with a slightly sweet and nutty flavour". It is an all-purpose cheese, used for both cooking and eating as a snack. It has a characteristic smooth, shiny-yellow body, and a creamy, supple texture. It is aged a minimum of three months and is distinguished by medium to large holes. Some variations are aged a minimum of 9, 12 or 15 months. It is usually produced in 10-kilogram (22 lb) wheels with an approximate diameter of 330 millimetres (13 in) and a height of 95 to 105 millimetres (3.7 to 4.1 in). The characteristic holes or "eyes" are the result of the action of the bacteria Propionibacterium freudenreichii which naturally occurs in milk and is added back into the cheese during production according to a closely guarded secret formula.
Source: Wikipedia