Type | Preserved meat |
---|---|
Main ingredients | Cured leg cut pork |
Ham is pork from a leg cut that has been preserved by wet or dry curing, with or without smoking. [1] As a processed meat, the term ham includes both whole cuts of meat and ones that have been mechanically formed.
Ham is made around the world, including a number of regional specialties. In addition, numerous ham products have specific geographical naming protection.
The preserving of pork leg as ham has a long history, with traces of production of cured ham among the Etruscan civilization known in the 6th and 5th century BC. [2]
Cato the Elder wrote about the "salting of hams" in his De agri cultura tome around 160 BC. [3]
There are claims that the Chinese were the first people to mention the production of cured ham. [4] Larousse Gastronomique claims an origin from Gaul. [5] It was certainly well established by the Roman period, as evidenced by an import trade from Gaul mentioned by Marcus Terentius Varro in his writings. [4]
The modern word ham is derived from the Old English ham or hom meaning the hollow or bend of the knee, from a Germanic base where it meant 'crooked'. It began to refer to the cut of pork derived from the hind leg of a pig around the 15th century. [6]
Because of the preservation process, ham is a compound foodstuff or ingredient, being made up of the original meat, as well as the remnants of the preserving agent(s), such as salt, but it is still recognised as a food in its own right. [7]
Ham is produced by curing raw pork by salting, also known as dry curing, or brining, also known as wet curing. Additionally, smoking may be employed, and seasonings may be added.
Traditional dry cure hams may use only salt as the curative agent, although this is comparatively rare. [8] This process involves cleaning the raw meat, covering it in salt while it is gradually pressed to squeeze out fluid. Specific herbs and spices may be used to add flavour during this step. The hams are then washed and hung in a dark, temperature-regulated place until dry. It is then hung to air for another period of time.
The duration of the curing process varies by the type of ham. For example, Jinhua ham takes approximately 8 to 10 months to complete, [9] jamón serrano cures in 9–12 months, prosciutto di Parma takes more than 12 months, and Iberian ham can take up to 2 years to reach the desired flavor characteristics. [10] Many dry-cured hams, such as prosciutto, are eaten without being cooked. [11]
Most modern dry cure hams also use nitrites (either sodium nitrite or potassium nitrite), which are added along with the salt. Nitrites are used because they prevent bacterial growth and, in a reaction with the meat's myoglobin, give the product a desirable dark red color. The amount and mixture of salt and nitrites used have an effect on the shrinkage of the meat. [12] Because of the toxicity of nitrite, some areas specify a maximum allowable content of nitrite in the final product. Under certain conditions, especially during cooking, nitrites in meat can react with degradation products of amino acids, forming nitrosamines, which are known carcinogens. [13]
The dry curing of ham involves a number of enzymatic reactions. The enzymes involved are proteinases (cathepsins – B, D, H & L, and calpains) and exopeptidases (peptidase and aminopeptidase). [14] These enzymes cause proteolysis of muscle tissue, which creates large numbers of small peptides and free amino acids, while the adipose tissue undergoes lipolysis to create free fatty acids. [14] Salt and phosphates act as strong inhibitors of proteolytic activity. [15] Animal factors influencing enzymatic activity include age, weight, and breed. [16] During the process itself, conditions such as temperature, duration, water content, redox potential, and salt content all have an effect on the meat. [14]
The salt content in dry-cured ham varies throughout a piece of meat, with gradients determinable through sampling and testing or non-invasively through CT scanning. [17]
Wet-cured hams are brined, which involves the immersion of the meat in a brine, sometimes with other ingredients such as sugar also added for flavour. The meat is typically kept in the brine for around 3 to 14 days. [8] Wet curing also has the effect of increasing volume and weight of the finished product, by about 4%.
The wet curing process can also be achieved by pumping the curing solution into the meat. This can be quicker, increase the weight of the finished product by more than immersion, and ensure a more even distribution of salt through the meat. This process is quicker than traditional brining, normally being completed in a few days. [18]
Wet-cured ham is usually cooked, either during processing, or after ageing. [19] [20] [21] [22] [23] It is first brined, then cooked in a container and finally surface pasteurized. Italian regulations allow it to contain salt, nitrites, sugar, dextrose, fructose, lactose, maltodextrin, milk protein, soy protein, natural or modified starches, spices, gelatin, and flavorings. [24]
Ham can also be additionally preserved through smoking, in which the meat is placed in a smokehouse (or equivalent) to be cured by the action of smoke.
The main flavor compounds of smoked ham are guaiacol, and its 4-, 5-, and 6-methyl derivatives as well as 2,6-dimethylphenol. These compounds are produced by combustion of lignin, a major constituent of wood used in the smokehouse. [25]
In many countries the term is now protected by statute, with a specific definition. For instance, in the United States, the Code of Federal Regulations (CFR) says that "the word 'ham', without any prefix indicating the species of animal from which derived, shall be used in labeling only in connection with the hind legs of swine". [26]
In addition to the main categories, some processing choices can affect legal labeling. For instance, in the United States, a "smoked" ham must have been smoked by hanging over burning wood chips in a smokehouse or an atomized spray of liquid smoke such that the product appearance is equivalent; a "hickory-smoked" ham must have been smoked using only hickory. However, injecting "smoke flavor" is not legal grounds for claiming the ham was "smoked"; these are labeled "smoke flavor added". Hams can only be labeled "honey-cured" if honey was at least 50% of the sweetener used, is at least 3% of the formula, and has a discernible effect on flavor. So-called "lean" and "extra lean" hams must adhere to maximum levels of fat and cholesterol per 100 grams of product.
Whole fresh pork leg can be labeled as fresh ham in the United States.
A number of hams worldwide have some level of protection of their unique characteristics, usually relating to their method of preservation or location of production or processing. Dependent on jurisdiction, rules may prevent any other product being sold with the particular appellation, such as through the European protected geographical indication.
Ham is typically used in its sliced form, often as a filling for sandwiches and similar foods, such as in the ham sandwich and ham and cheese sandwich. Other variations include toasted sandwiches such as the croque-monsieur and the Cubano. It is also a popular topping for pizza in the United States.
In the United Kingdom, a pork leg cut, either whole or sliced, that has been cured but requires additional cooking is known as gammon. Gammons were traditionally cured before being cut from a side of pork along with bacon. When cooked, gammon is ham. Cooked ham joints are a popular dish around Christmas time, particularly in the Anglosphere and Northern Europe. Gammon can also served as gammon steaks, which are fried or grilled, and served in a similar manner to bacon. [31]
Salami is a cured sausage consisting of fermented and air-dried meat, typically pork. Historically, salami was popular among southern, eastern, and central European peasants because it can be stored at room temperature for up to 45 days once cut, supplementing a potentially meager or inconsistent supply of fresh meat. Countries and regions across Europe make their own traditional varieties of salami.
Prosciutto crudo, in English often shortened to prosciutto, is uncooked, unsmoked, and dry-cured ham. Prosciutto crudo is usually served thinly sliced.
Romanian cuisine is a diverse blend of different dishes from several traditions with which it has come into contact, but it also maintains its own character. It has been mainly influenced by Turkish but also a series of European cuisines in particular from the Balkan Peninsula and Hungarian cuisine as well as culinary elements stemming from the cuisines of Central Europe.
Pancetta is a salt-cured pork belly meat product in a category known as salume. In Italy, it is often used to add depth to soups and pastas.
Jamón is a type of dry-cured ham produced in Spain. It is one of the most globally recognized food items of Spanish cuisine. It is also regularly a component of tapas.
Charcuterie is a branch of French cuisine devoted to prepared meat products, such as bacon, ham, sausage, terrines, galantines, ballotines, pâtés, and confit, primarily from pork.
Elenski but is a dry-cured ham from the town of Elena, in northern Bulgaria, and a popular delicacy throughout the country. The meat has a specific taste and can be preserved in the course of several years, owing much to the special process of making and the climatic conditions of the part of Stara Planina where Elena is located.
Curing salt is used in meat processing to generate a pinkish shade and to extend shelf life. It is both a color agent and a means to facilitate food preservation as it prevents or slows spoilage by bacteria or fungus. Curing salts are generally a mixture of sodium chloride and sodium nitrite, and are used for pickling meats as part of the process to make sausage or cured meat such as ham, bacon, pastrami, corned beef, etc. Though it has been suggested that the reason for using nitrite-containing curing salt is to prevent botulism, a 2018 study by the British Meat Producers Association determined that legally permitted levels of nitrite have no effect on the growth of the Clostridium botulinum bacteria that causes botulism, in line with the UK's Advisory Committee on the Microbiological Safety of Food opinion that nitrites are not required to prevent C. botulinum growth and extend shelf life..
Curing is any of various food preservation and flavoring processes of foods such as meat, fish and vegetables, by the addition of salt, with the aim of drawing moisture out of the food by the process of osmosis. Because curing increases the solute concentration in the food and hence decreases its water potential, the food becomes inhospitable for the microbe growth that causes food spoilage. Curing can be traced back to antiquity, and was the primary method of preserving meat and fish until the late 19th century. Dehydration was the earliest form of food curing. Many curing processes also involve smoking, spicing, cooking, or the addition of combinations of sugar, nitrate, and nitrite.
Salumi are Italian meat products typical of an antipasto, predominantly made from pork and cured. Salumi also include bresaola, which is made from beef, and some cooked products, such as mortadella and prosciutto.
Cured fish is fish which has been cured by subjecting it to fermentation, pickling, smoking, or some combination of these before it is eaten. These food preservation processes can include adding salt, nitrates, nitrite or sugar, can involve smoking and flavoring the fish, and may include cooking it. The earliest form of curing fish was dehydration. Other methods, such as smoking fish or salt-curing also go back for thousands of years. The term "cure" is derived from the Latin curare, meaning to take care of. It was first recorded in reference to fish in 1743.
Bayonne ham or jambon de Bayonne is a cured ham that takes its name from the ancient port city of Bayonne in the far southwest of France, a city located in both the cultural regions of Basque Country and Gascony. It has PGI status.
Speck Alto Adige is a dry-cured, lightly smoked ham produced in South Tyrol, northern Italy. Parts of its production are regulated by the European Union under the protected geographical indication (PGI) status.
Cured pork tenderloin is found in various cuisines in Mediterranean Europe and South America. It is typically salted or brined then dry-cured or smoked.
Gammon in British English is the hind leg of pork after it has been cured by dry-salting or brining, and may or may not be smoked. Strictly speaking, a gammon is the bottom end of a whole side of bacon ; ham is just the back leg cured on its own. Like bacon it must be cooked before it can be eaten; in that sense gammon is comparable to fresh pork meat, and different from dry-cured ham like jamón serrano or prosciutto. The term is mostly used in the United Kingdom and Ireland; other dialects of English largely make no distinction between gammon and ham.
Jinhua ham is a type of specialty dry-cured ham named after the city of Jinhua, where it is produced, in Zhejiang province, China. The ham is used in Chinese cuisines to flavor stewed and braised foods as well as for making the stocks and broths of many Chinese soups. The ham was awarded first prize in the 1915 Panama International Merchandise Exhibition.
This article provides information on animal production and consumption in Switzerland.
Dry-curing with salt helps prevent bacterial growth, making the hams safe to eat uncooked. ... 'prosciutto crudo' is raw, air-dried pork (although safe and ready to eat thanks to the curing process)