Pichancha: what it is and its role in making nixtamal

What is it?

The pichancha is a perforated vessel, traditionally made of clay, used in Mexican cooking to drain nixtamal (maize cooked with lime) before it is ground into masa. Its characteristic form is that of a pot with multiple holes in the base and sides, which allows the cooked grain to be separated from its cooking water (nejayote) and rinsed with clean water to remove any excess lime. The pichancha is a fundamental utensil in the nixtamalisation process and forms part of the maize know-how of rural and indigenous communities. Although it now coexists with metal colanders and industrial mesh bags, the clay pichancha is still preferred by traditional cooks for its ability to drain without damaging the kernels. Its very existence attests to the technological sophistication of Mesoamerican maize cookery.

Origin and history

The pichancha appears in the Mesoamerican archaeological record alongside nixtamalisation, a technique documented in Mesoamerica for at least 3,500 years. Finds at sites such as Soconusco (Chiapas) and Tehuacán (Puebla) include perforated pots that may correspond to early pichanchas. The name comes from American Spanish and appears in colonial dictionaries of the sixteenth and seventeenth centuries, referring to a perforated vessel for draining. In his Historia general de las cosas de Nueva España, Fray Bernardino de Sahagún describes the complete nixtamalisation process and mentions the utensils used, including strainers and perforated vessels. Through the colonial period and the centuries that followed, the clay pichancha kept its essential form: a concave pot with regular perforations in the base and walls. Today it is made by hand in potters' villages in Oaxaca, Puebla, Veracruz and Chiapas, where it remains part of the cookware of households that nixtamalise their own maize. Larousse Cocina and México Desconocido document it as a heritage utensil.

Characteristic ingredients

The traditional pichancha is a fired-clay vessel shaped like a wide pot or deep cazuela, with perforations 5-10 mm in diameter distributed across the base and lower sides. The number of holes varies with size and regional tradition, but is generally enough to allow efficient draining without the cooked maize slipping through. Some pichanchas have side handles for managing the weight of wet nixtamal. Common sizes run from 30 to 50 cm in diameter, with capacity for 3-10 kg of nixtamal. The technique goes as follows: once the maize has been cooked with lime (1.5-2 hours) and left to rest overnight, it is tipped into the pichancha placed over another vessel or over the sink. The nejayote (the yellowish alkaline water) is left to drain away, and the nixtamal is then rinsed with clean water, rubbing it between the hands to remove the excess lime and the skins of the pericarp. The clean nixtamal is then ready to grind on a metate or in a mill. Contemporary variants include perforated plastic pichanchas, mesh bags and stainless-steel colanders, all serving the same purpose.

Cultural significance

The pichancha is part of the heritage process of nixtamalisation, a technique recognised as a pillar of traditional Mexican cuisine, declared Intangible Cultural Heritage of Humanity by UNESCO in 2010. In rural and indigenous communities that still produce their own nixtamal masa, the pichancha is a fundamental everyday utensil, passed down from mothers to daughters. Its use reflects the technological sophistication of Mesoamerican maize cookery, one of Mexico's most important culinary contributions to the world. The nejayote drained through the pichancha carries cultural and environmental value of its own: traditionally it was poured out as an offering to the earth or reused as fertiliser. The pichancha can be found in the markets of potters' villages and in ethnographic displays at museums such as the National Museum of Anthropology and the Museo de Culturas Populares. In contemporary Mexican cooking and in maize revival projects (such as the Maizajo movement and artisan tortillerías), the pichancha has once again become a symbol of the return to traditional nixtamalisation in response to the mass industrialisation of maize flour.

Frequently asked questions

What is the difference between a pichancha and a colander?

The traditional pichancha is made of clay, with perforations designed specifically for draining and rinsing nixtamal without damaging the kernels. The modern colander (stainless steel or plastic) has finer perforations and can leave traces of lime behind. The pichancha also lets you agitate the maize inside it to shed the skins, something difficult in flatter conventional colanders.

What does nixtamal drained in a pichancha taste like compared with a colander?

The flavour is practically the same provided the rinsing is done well in either. The pichancha allows several rinses without transferring between vessels, which ensures the excess lime is removed. If residual lime remains, the masa can turn out bitter or soapy; proper rinsing guarantees masa with a clean, aromatic nixtamalised-maize flavour.

How do you use a pichancha correctly?

Place it over another vessel and pour in the nixtamal, nejayote and all. Let the yellow liquid drain away for a few minutes. Then pour in plenty of clean water and rub the maize between your hands to remove the lime and the skins of the pericarp. Repeat the rinse 2-3 times until the water runs clear. The nixtamal is then ready to grind.

Where does the pichancha come from?

The pichancha, as a perforated vessel for nixtamal, originated in Mesoamerica, tied to the nixtamalisation process documented for 3,500 years. Today it is made by hand in Oaxaca, Puebla, Veracruz, Chiapas and various potters' villages across Mexico where small-scale nixtamal masa-making is kept alive.