Overview

Corn (Zea mays), also called maize, is a large grass domesticated in Mesoamerica and the most widely grown grain in the Americas by volume. The plant produces ears of kernels that range in color from yellow and white to blue, red, and black, with a starchy or sweet flavor depending on the variety and maturity. It is the foundational grain of Mexican cuisine and a major staple across the Americas, Africa, and parts of Asia.

Origin and history

Corn was domesticated from the wild grass teosinte (Zea mays ssp. parviglumis) in the Balsas River Valley of southwestern Mexico approximately 9,000 years ago [2][6]. By 1500 BCE, maize cultivation had spread throughout Mesoamerica and into the southwestern United States [7]. Indigenous peoples developed nixtamalization — cooking dried corn in alkaline lime or ash water — which releases niacin and makes the grain’s amino acids more bioavailable [3][8]. After 1492, corn spread globally via Spanish and Portuguese trade routes, reaching West Africa, Europe, and Asia within decades [8]. The Manila Galleon trade (1565–1815) introduced corn to the Philippines, where it became the second most important staple after rice [1].

Varieties and aliases

  • Dent corn (Zea mays indentata): The most widely grown field corn; used for animal feed, industrial starch, and masa production.
  • Flint corn (Zea mays indurata): Hard-kerneled; common in the Andes and northeastern United States.
  • Flour corn (Zea mays amylacea): Soft, starchy kernels; preferred for Andean chicha and some Mexican masa.
  • Popcorn (Zea mays everta): Small, hard kernels that explode when heated.
  • Sweet corn (Zea mays saccharata): High-sugar kernels eaten fresh; the dominant table corn in the United States.
  • Blue corn / maíz azul: Heirloom variety common in the Southwestern US and Oaxaca; used for blue tortillas and tlacoyos [4].
  • Choclo: Large-kernel Andean corn; eaten boiled or grilled in Peru and Bolivia [5].
  • Mote: Dried, nixtamalized hominy corn used in Peruvian and Bolivian soups and stews [5].
  • Cancha: Toasted corn kernels; a Peruvian snack and ceviche accompaniment [5].

Culinary uses

In Mexican cuisine, nixtamalized corn is ground into masa for tortillas, tamales, tlacoyos, sopes, and gorditas [3][4]. Fresh corn (elote) is boiled or grilled and dressed with mayonnaise, chile, and lime. Dried corn is also used for pozole (hominy stew), atole (warm masa drink), and as a thickener in sauces. In the Andes, choclo is served with cheese and ají, and mote is added to soups. In the Philippines, corn is ground for pudpod (cornmeal cakes) and used in ginataan (coconut-milk desserts) [1]. In the United States, sweet corn is eaten on the cob, creamed, or canned. Cornstarch, derived from the endosperm, is a common thickener in Chinese stir-fries and Western sauces.

Cross-cuisine context

Corn is the central grain of Mexican and Mesoamerican cuisines, with no direct equivalent in the East Asian or European grain traditions. In Korean cuisine, corn appears in olchaengi-guksu (tadpole noodles made from cornmeal) and as a topping for Hokkaido-style miso ramen [10]. In Vietnamese cooking, dried corn kernels are steamed with sticky rice for xôi ngô, and cornstarch is used to thicken soups like súp cua [11]. In Filipino cuisine, corn is a secondary staple after rice, appearing in both savory dishes (corned beef silog) and sweet preparations (mais con hielo, a shaved-ice dessert) [1]. In Russian and Eastern European cooking, cornmeal is used for mamaliga, a stiff porridge similar to Italian polenta [12].

Where in LA

Masienda, a Los Angeles-based wholesale distributor, sources single-origin heirloom corn from farmer-partners in Oaxaca and other Mexican states, supplying masa to LA restaurants. MaizArte, another LA distributor, sources corn from farming communities in Mexico City and Oaxaca, though its current operational status is less certain.

Notes for cooks

  • Nixtamalized masa harina (such as Maseca or heirloom brands) is not interchangeable with raw cornmeal or corn flour; only nixtamalized masa will produce pliable tortillas and proper tamale texture.
  • Fresh sweet corn should be used within a day or two of harvest; sugars convert to starch rapidly after picking.
  • Dried corn for pozole or hominy must be nixtamalized before cooking; canned hominy is a shortcut but has a softer, less toothsome texture.