Chile costeño rojo: the dried chilli of the Oaxacan coast

What is it?

Chile costeño rojo is a regional dried chilli of the Costa Chica of Oaxaca and Guerrero, valued for its deep flavour and moderate-high heat. It is elongated, measuring 6 to 8 cm, has a pointed shape and a glossy deep red or wine colour. It belongs to the species Capsicum annuum and is grown in small plots on the Oaxacan coast, where the warm, humid climate favours its aromatic qualities. Its heat is moderate-high (15,000-30,000 Scoville units). It brings a fruity flavour with notes of red berries and a herbal hint. It is used mainly in regional Oaxacan moles, coastal salsas, adobos and broths, and is sold above all in the local markets of Pinotepa Nacional, Jamiltepec, Pochutla and Puerto Escondido.

Origin and history

Chile costeño is one of the regional chillies most representative of the Afro-mestizo and indigenous cuisine of the Costa Chica of Oaxaca and Guerrero. Its cultivation goes back to pre-Hispanic times, when the Mixtec and Chatino peoples of the coast grew it in family milpas. The cuisine of the Oaxacan coast, deeply shaped by Mixtec, Chatino, Afro-Mexican and mestizo contributions, keeps costeño rojo as a defining ingredient. Larousse Cocina and the Encyclopaedic Dictionary of Mexican Gastronomy identify it as a key ingredient in coastal moles and in some variants of yellow mole and chichilo of the Sierra Mixe. CONABIO documents it as part of the heritage of native Mexican chillies. SADER recognises it as a regional Oaxacan chilli with potential for a protected designation of origin. Its artisanal production sustains the economy of small indigenous and Afro-Mexican communities of the coast, with sun-drying techniques inherited from one generation to the next.

Characteristic ingredients

Chile costeño rojo is a Capsicum annuum traditionally grown in small milpas of the Oaxacan Costa Chica. The fruits are harvested when they reach an intense red, and are sun-dried for several days until the skin becomes crisp and glossy. It has an elongated, pointed shape (6-8 cm), smooth skin with some sheen and a deep red colour. Its heat is moderate-high (15,000-30,000 SHU), above guajillo and below de arbol. Its flavour brings notes of dried red berries, a herbal hint and a light astringency. To use it, devein and deseed it, toast it briefly on a comal (watch out for burning) and rehydrate in hot water for about 15 minutes. Then blend it with tomato and garlic to make adobos and salsas. It pairs very well with chilcostle, costeño amarillo and other regional chillies to make Oaxacan moles. It is a key ingredient of coastal salsa with roasted tomato and is used in fish and seafood broths typical of the coast.

Cultural significance

Chile costeño rojo is part of the repertoire of native chillies that sustain Oaxacan cuisine, recognised as part of traditional Mexican cuisine inscribed by UNESCO as Intangible Cultural Heritage. It is a defining ingredient of the Costa Chica of Oaxaca, where its production and trade in local markets such as Pinotepa Nacional and Jamiltepec keep alive the Afro-mestizo and indigenous culinary culture. It is essential in coastal moles and appears in variants of the seven moles of Oaxaca when chilhuacle or chilcostle is in short supply. SADER and CONABIO emphasise its genetic value as part of the diversity of native chillies. Its artisanal production sustains Mixtec, Chatino and Afro-Mexican families on the coast, in a rural economy in which dried chilli is sold by the kilo to intermediaries and Oaxacan restaurants. In contemporary cooking, Oaxacan chefs such as Alejandro Ruiz and Olga Cabrera have revived it in dishes that reclaim regional chillies in the face of the homogenisation of the national market.

Frequently asked questions

What is the difference between chile costeño rojo and chile guajillo?

Both are red dried Capsicum annuum chillies, but they come from different varieties and are grown in different regions. Costeño rojo is smaller (6-8 cm), hotter (15,000-30,000 SHU) and comes from the Oaxacan coast. Guajillo is larger (10-15 cm), less hot (2,500-5,000 SHU) and is grown in the Bajio. Their aromatic profiles are distinct: costeño is more herbal and fruity, guajillo more citrusy.

What does chile costeño rojo taste like?

It brings a fruity, deep flavour with notes of dried red berries, a herbal hint and a very characteristic light astringency. Its heat is moderate-high (15,000-30,000 Scoville units), more intense than guajillo but more manageable than de arbol. When briefly toasted it develops sweet, caramelised aromas that enrich coastal moles and salsas.

How is chile costeño rojo used?

It is deveined, deseeded, lightly toasted and rehydrated in hot water for about 15 minutes before blending. It is the base of regional Oaxacan moles, coastal salsa with roasted tomato, adobos for fish and meat, and broths typical of the coast. It is usually combined with costeño amarillo, chilcostle or guajillo to obtain complex moles. In the everyday cooking of the Costa Chica it accompanies fish and seafood.

Where does chile costeño rojo come from?

It is native to the Costa Chica of Oaxaca and Guerrero, where it is traditionally grown in small family milpas by Mixtec, Chatino and Afro-Mexican communities. SADER recognises it as a regional Oaxacan chilli with potential for a protected designation of origin. Its artisanal production maintains pre-Hispanic sun-drying techniques and forms part of the heritage of native Mexican chillies documented by CONABIO.