Overview

The domestic pig is a large, even-toed ungulate descended from the wild boar. It is raised worldwide for its meat, which is consumed fresh, cured, smoked, and fermented in nearly every cuisine. The animal’s body length ranges from 0.9 to 1.8 meters and adults weigh between 50 and 350 kilograms, depending on breed and feeding regimen [1].

Origin and history

The domestic pig was independently domesticated from wild boar in multiple regions, including Anatolia, East Asia, and possibly Southeast Asia, beginning around 9,000 to 10,000 years ago [2]. Pigs spread across Europe and Asia through human migration and trade, and were introduced to the Americas by Spanish and Portuguese colonizers in the 16th century [3]. Unlike cattle or sheep, pigs are omnivorous and were often kept as scavengers in settled agricultural communities, which made them a practical protein source in many environments. The taxonomic classification of the domestic pig remains debated: some authorities treat it as a subspecies of the wild boar (Sus scrofa domestica), while others consider it a distinct species (Sus domesticus) [1].

Varieties and aliases

Hundreds of named breeds exist worldwide, including Large White, Duroc, Berkshire, Tamworth, Iberian, Mangalitsa, and Meishan. In culinary contexts, the animal is often referred to by the age or weight class of the individual (suckling pig, hog, market hog) or by the specific cut (pork shoulder, belly, loin, leg).

Culinary uses

Every part of the pig is used in cooking. Fresh cuts are roasted, grilled, braised, fried, and stewed. The meat is also cured into ham and bacon, fermented into sausages, and smoked for preservation. Offal (liver, heart, kidneys, intestines, blood) appears in dishes such as blood sausage, liver pâté, and chitterlings. The fat is rendered into lard for frying and baking. The skin is fried into cracklings or chicharrón. The head and trotters are used in stocks and terrines. Bones are simmered for broth. In Mexican cuisine, pork is central to carnitas, al pastor, cochinita pibil, and chicharrón. In Chinese cuisine, pork appears in char siu, braised belly (hong shao rou), and dumpling fillings. In Filipino cuisine, lechón is a whole-roasted pig. In Korean cuisine, pork belly (samgyeopsal) is grilled at the table. In Vietnamese cuisine, pork is used in bánh mì, thịt kho tàu, and grilled pork skewers (thịt nướng).

Cross-cuisine context

Pork is one of the most widely consumed meats globally, and its culinary role often provides rich, fatty protein suitable for a variety of cooking methods. In many cuisines—including Mexican, Chinese, Filipino, and Vietnamese—pork is a primary meat for everyday cooking and festive dishes, and the use of the whole animal (offal, skin, blood, fat) is common. No direct analogue exists in cuisines where pork is avoided for religious reasons, such as Arabic and Jewish culinary traditions, where lamb, beef, and chicken fill the structural role that pork holds elsewhere.

Notes for cooks

  • Pork must be cooked to an internal temperature of at least 63°C (145°F) for whole cuts and 71°C (160°F) for ground pork, per food safety guidelines. Trichinella is considered largely eliminated in commercial pork in many developed countries by food safety authorities, but proper cooking remains recommended.
  • Fat content varies significantly by breed and cut. Heritage breeds such as Berkshire and Duroc have more intramuscular fat and deeper flavor than commodity hybrid breeds.
  • Fresh pork should have pale pink to rose-colored flesh with white, firm fat. Darkening or drying at the edges indicates oxidation. Pork fat can develop rancid flavors if stored too long, even when frozen.