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
Abondance cheese Abondance cheese Abondance is a semi-hard, fragrant, raw-milk cheese made in the Haute-Savoie department of France. Its name comes from a small commune also called Abondance. A round of Abondance weighs approximately , and its aroma is similar to that of Beaufort, also from France. Abondance is made exclusively from milk produced by the Abondance, montbéliarde, and tarine breeds of cattle. By 2022, the herd producing the milk for Abondance cheese will need to be a minimum of 55 percent of the herd. In 1998, 873 tonnes were produced (+16.4 percent since 1996), 34 percent from local farms. Abondance cheese