Grana is a type of

hard Hard may refer to: * Hardness, resistance of physical materials to deformation or fracture * Hard water, water with high mineral content Arts and entertainment * ''Hard'' (TV series), a French TV series * Hard (band), a Hungarian hard rock supe ...

, mature

cheese Cheese is a dairy product produced in wide ranges of flavors, textures, and forms by coagulation of the milk protein casein. It comprises proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep. During production, ...

from Italy with a granular texture, often used for

grating A grating is any regularly spaced collection of essentially identical, parallel, elongated elements. Gratings usually consist of a single set of elongated elements, but can consist of two sets, in which case the second set is usually perpendicul ...

. Grana cheeses are typically made in the form of large

wheels A wheel is a circular component that is intended to rotate on an axle bearing. The wheel is one of the key components of the wheel and axle which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be ...

. The structure is often described as

crystalline A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macrosc ...

, and the wheels are divided by being split with a fairly blunt almond-shaped knife designed for the purpose, rather than being sliced, cut or sawn. Within the

European Union The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...

the term ''Grana'' is legally protected by

Grana Padano Grana Padano is a cheese originating in the Po river Valley in northern Italy that is similar to Parmigiano Reggiano cheese. There are less strict regulations governing its production compared to Parmigiano Reggiano. This hard, crumbly- textured ...

Protected Designation of Origin The protected designation of origin (PDO) is a type of geographical indication of the European Union and the United Kingdom aimed at preserving the designations of origin of food-related products. The designation was created in 1992 and its main ...

; only Grana Padano may be sold using the term in EU countries."Grana è solo Padano"
(''Grana'' is only Padano.), Consorzio per la tutela del Formaggio Grana Padano The two best-known examples of grana-type cheeses are

Parmigiano-Reggiano Parmesan ( it, Parmigiano Reggiano; ) is an Italian hard, granular cheese produced from cows’ milk and aged at least 12 months. It is named after two of the areas which produce it, the provinces of Parma and Reggio Emilia (''Parmigiano'' is ...

and

. The two cheeses are broadly similar, with the latter being less sharp, crumbly and grainy. The main difference between the two is that cows producing Parmigiano-Reggiano eat only grass and cereals—no

silage Silage () is a type of fodder made from green foliage crops which have been preserved by fermentation to the point of acidification. It can be fed to cattle, sheep and other such ruminants (cud-chewing animals). The fermentation and storage p ...

, no preservatives, and no antibiotics. Cows that have been treated with antibiotics are suspended from production of Parmigiano-Reggiano and Grana Padano. Silage is a fermented forage that requires the addition of a natural preservative (

lysozyme Lysozyme (EC 3.2.1.17, muramidase, ''N''-acetylmuramide glycanhydrolase; systematic name peptidoglycan ''N''-acetylmuramoylhydrolase) is an antimicrobial enzyme produced by animals that forms part of the innate immune system. It is a glycoside ...

) to Grana Padano. Feeding of silage and addition of lysozyme are forbidden in production of Trentingrana and Parmigiano-Reggiano. Tagliagrana

Other Grana cheeses include: * Granone Lodigiano (also called ''Tipico Lodigiano''), produced in the

Province of Lodi The province of Lodi ( it, provincia di Lodi; Ludesan: ) is a province in the Lombardy region of Italy. Its provincial capital is the city of Lodi. As of 2017, it has a population of 229,541 inhabitants over an area of c. , giving the province ...

* Trentingrana, produced in and around

Trento Trento ( or ; Ladin and lmo, Trent; german: Trient ; cim, Tria; , ), also anglicized as Trent, is a city on the Adige River in Trentino-Alto Adige/Südtirol in Italy. It is the capital of the autonomous province of Trento. In the 16th centu ...

* Gransardo, from anjali

Sardinia Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label=Algherese and Catalan) is the second-largest island in the Mediterranean Sea, after ...

*Valgrana, from

Piedmont it, Piemontese , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , demographics1_title2 ...

Pecorino Romano Pecorino Romano () is a hard, salty Italian cheese, often used for grating, made with sheep's milk. The name "pecorino" simply means "ovine" or "of sheep" in Italian; the name of the cheese, although protected, is a simple description rather than ...

, a

sheep's milk Sheep's milk (or ewes' milk) is the milk of domestic sheep. It is commonly used to make cultured dairy products such as cheese. Some of the most popular sheep cheeses include feta (Greece), ricotta (Italy), and Roquefort (France). Sheep breeds S ...

cheese produced mostly in

, but also in

Lazio it, Laziale , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , demographics1_title2 ...

, and the

Province of Grosseto The province of Grosseto ( it, links=no, provincia di Grosseto) is a province in the Tuscany region of Italy. Its capital is the city of Grosseto. As of 2013 the province had a total population of 225,098 people. Geography The Province of Gros ...

Tuscany Tuscany ( ; it, Toscana ) is a Regions of Italy, region in central Italy with an area of about and a population of about 3.8 million inhabitants. The regional capital is Florence (''Firenze''). Tuscany is known for its landscapes, history, art ...

. Grana cheeses typically contain

cheese crystals Cheese crystals are whitish, semi-solid to solid, slightly crunchy to gritty crystalline spots, granules, and aggregates that can form on the surface and inside of cheese. Cheese crystals are characteristic of many long-aged hard cheeses. Hard c ...

, semi-solid to gritty crystalline spots that at least partially consist of the

amino acid Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although hundreds of amino acids exist in nature, by far the most important are the alpha-amino acids, which comprise proteins. Only 22 alpha am ...

tyrosine -Tyrosine or tyrosine (symbol Tyr or Y) or 4-hydroxyphenylalanine is one of the 20 standard amino acids that are used by cells to synthesize proteins. It is a non-essential amino acid with a polar side group. The word "tyrosine" is from the Gr ...

History

Grana originally described a type of hard cheese from the

Po Valley The Po Valley, Po Plain, Plain of the Po, or Padan Plain ( it, Pianura Padana , or ''Val Padana'') is a major geographical feature of Northern Italy. It extends approximately in an east-west direction, with an area of including its Venetic ex ...

(Valle Padana) in Northern Italy, with a distinctive granular texture—the word "grana" in Italian means "grain".

References

Sources

*Rubino, R., Sardo, P., Surrusca, A. (2005), ''Italian Cheese'', {{Italian cheeses Italian cheeses