Ham is the thigh and rump of pork, cut from the haunch of a pig or boar. Although it may be cooked and served fresh, most ham is cured in some fashion. Cuts referred to as Ham in the US are called Gammon in the UK and Ireland.
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Ham can be dry-cured or wet-cured.
A dry-cured ham has been rubbed in a mixture containing salt and a variety of other ingredients (most usually some proportion of sodium nitrate and sodium nitrite). This is followed by a period of drying and aging. Dry-cured hams may require a period of re-hydration prior to consumption. Some ham curing methods begin wet but are followed by dry aging.
Dry-cured varieties include Italian prosciutto crudo [pro.ʃ'ʃut:to 'kru:do] (prosciutto di Parma, prosciutto di San Daniele, prosciutto di Carpegna, prosciutto di Modena, prosciutto Toscano, prosciutto Veneto Berico-Euganeo, Valle d’Aosta Jambon de Bosses, prosciutto di Norcia) and the Spanish Jamon serrano and jamón ibérico. The United States has country ham (including Virginia ham), which might or might not be smoked. England has the York ham. Germany's Westphalian ham is usually smoked over juniper, in Belgium there is the smoked Ardennes ham, and from China there is the unsmoked Jinhua ham. In Bulgaria the specific Elenski but is produced. In Iran, the dry-cured Zard Kūh ham is produced.
A wet-cured ham has been cured with a brine, either by immersion or injection. The curing solution typically contain salt, sodium nitrate, smoke flavoring as well as other additives. Wet cured hams typically are sold packaged with their curing brine.
Wet cured ham is often commonly sold in tins or 'cans' for preservation. Ham is also processed into other meat products such as Spam luncheon meat.
Chinese dry-cured hams have been recorded in texts since prior to Song dynasty and used in a myriad of dish. Several types are existent in Qing dynasty and used in dishes of stewing hams (火腿炖肘子), and vegetables, or for a wide variety of soup and important soup stocks. One of the most famous Chinese hams is the Jinhua ham, which is used to produce a dish known as "Buddha jumps over the wall".
Bayonne Ham or Bayonne is an air dried salted ham that takes its name from the ancient port city of Bayonne in the far South West of France (Le Pays Basque or the Basque country).
Jambon de Paris is a wet-cured, boneless ham and baked in shape. The ham is of superior quality product prepared from fresh, unfrozen pork thighs without adding polyphosphates.
In Italy, ham is called prosciutto, and can be either raw (prosciutto crudo) or cooked (prosciutto cotto).
Earliest evidence of ham production in Italy comes from the Republican Roman period (400-300 BCE).
Modern Italian and European Union legislation grants a protected designation of origin to several raw hams, which specify where and how these types of ham can be produced. There are several such hams from Italy, each one with a peculiar production process. Parma ham, the so called Prosciutto di Parma, has almost 200 producers concentrated in the eastern part of Parma Province. Its production is regulated by a quality consortium that recognizes qualifying products with distinctive mark. Only larger fresh hams are used (12-13 kilograms). Curing uses relatively little salt, but can include garlic salt and sugar producing a sweeter meat. After salting, the meat is sealed with pig fat over the exposed muscle tissue, which slows drying. Curing occurs over a minimum 12 months. This curing method uses only salt, without nitrates and without spices. No conserving substances added. San Daniele ham (Prosciutto di San Daniele) is the most similar to Parma ham, especially the low quantity of salt added to the meat, and is the most prized ham. Other raw hams include the so called "nostrani" or "nazionali" or "toscani", they are more strongly flavoured and are produced using a higher quantity of salt.
In Portugal, besides several varieties of wet-cured hams called fiambre (not to be confused with the Guatemalan dish, also called fiambre), the most important type of ham is presunto, a dry-cured ham similar to Spanish jamón and Italian prosciutto. There is a wide variety of presuntos in Portugal; among the most famous are presunto from Chaves and presunto from Alentejo (made from black iberian pig; see also pata negra).
In Romania, ham is called şuncă/şonc/jambon. Usually dry cured, always with granular salt, in Transilvania and Banat paprika might be added. This is because of a tradition dating back to 30 C.E. The Romanians considered it an offering of peace to their Gods to preserve ham in the cleanest way possible. To let ham or any meat go wasted was considered a severe insult to the gods
One of the more exacting ham regulatory practices can be found in Spain, where ham is called Jamón. Hams in Spain are not only classified according to preparation, but the race, the pre-slaughter diet and region of preparation are considered important.
First of all we must distinguish between two races of pigs: The white pig, and the iberian pig:
The Jamón serrano(Serrano Ham) comes from the white pig. The regional appellations of Spanish Serrano ham include the following:
The Jamón Ibérico(Iberian Ham) comes from the iberian pig, and it is also clasiffied depending on the amount of acorns they eat, what determines the ham quality. Spanish regulators[2] recognize three qualities:
The regional appellations (D.O.) of Iberian ham include the following:
In the United States, ham is regulated primarily on the basis of its cure and water content. The USDA recognizes the following categories:
Fresh ham is an uncured hind leg of pork. Country Ham is uncooked, cured, dried, smoked-or-unsmoked, made from a single piece of meat from the hind leg of a hog or from a single piece of meat from a pork shoulder. Smithfield ham, a country ham, must be grown and produced in or around Smithfield, Virginia, to be sold as such.
For most other purposes, under US law, a "ham" is a cured hind leg of pork that is at least 20.5% protein (not counting fat portions) and contains no added water. However, "ham" can be legally applied to such things as "turkey ham" if the meat is taken from the thigh of the animal. If the ham has less than 20.5% but is at least 18.5% protein, it can be called "ham with natural juices". A ham that is at least 17.0% protein and up to 10% added solution can be called "ham—water added". Finally, "ham and water product" refers to a cured hind leg of pork product that contains any amount of added water, although the label must indicate the percent added ingredients. If a ham has been cut into pieces and moulded, it must be labelled "sectioned and formed" or "chunked and formed".
Sugar is common in many dry cures in the United States. The majority of common wet-cured ham available in U.S. supermarkets is of the "city ham" variety, in which brine is injected into the meat for a very rapid curing suitable for mass market. Traditional wet curing requires immersing the ham in a brine for an extended period, often followed by light smoking. Traditional wet cured ham includes the English Wiltshire ham and the French Jambon de Paris.
In addition to the main categories, some processing choices can affect legal labelling. A 'smoked' ham must have been smoked by hanging over burning wood chips in a smokehouse, and a "hickory-smoked" ham must have been smoked over hickory. Injecting "smoke flavour" is not legal grounds for claiming the ham was "smoked". Hams can only be labelled "honey-cured" if honey was at least 50% of the sweetener used and has a discernible effect on flavour. So-called "lean" and "extra lean" hams must adhere to maximum levels of fat and cholesterol per 100 grams of product.
One of the most popular and expensive hams in the United States is Smithfield or Virginia ham. Through a special curing process Smithfield ham ages. In that time a fungal coat forms over the outside of the ham while the rest of the meat continues to age. This process produces a distinctive flavour, but the fungal layer must be scrubbed off the ham before being cooked or served.
Turkey ham, a boneless product made from pressed dark meat, a popular low-fat alternative to traditional ham in the US.[4]
A spiral-slicing process has become popular for boneless hams sold by delicatessens in the US.[5]
Tinned ham is a meat product that is sold exclusively in tins (or 'cans'). The ham itself is usually of a poorer quality than that bought from a traditional butcher and is often covered in an aspic jelly during the canning process.
Tinned ham is usually sold in supermarkets and convenience stores.