Blue cheese of blue veins. The distinctive flavor and aroma of blue cheese arises from methyl ketones (including 2-pentanone, 2-heptanone, and 2-nonanone) which are a metabolic product of "Penicillium roqueforti". These compounds are not formed in other types of cheese fermented by bacterial acidification alone. In the European Union, many blue cheeses, such as Cabrales, Danablu, Gorgonzola, Roquefort and Blue Stilton, carry a protected designation of origin, meaning they can bear the name only if they have been made in a particular region. Similarly, individual countries have protections of their own such as France's Appellation d'Origine Contrôlée and Italy's Denominazione di Origine
Dorset Blue Vinney cheese again. In his poem "Praise O' Do'set", the Dorset poet William Barnes asks, It is often made from unpasteurised milk. This is considered healthy by some and risky by others due to the potential for tuberculosis from infected cows passing into the milk. It has a strong taste and smell. Blue Vinney goes well with Dorset knobs, another traditional product from Dorset. Dorset Blue Cheese has been awarded Protected Geographical Status, ensuring only cheese originating from Dorset may use the name. Local myth describes how in years gone by, due to its supposed illegal nature, Blue Vinny would be