HotPepperIndex
Capsicum annuum

Costeño Rojo

Pacific coastal regions of Oaxaca and Guerrero, Mexico
Hot
Also known asCosteño Rojo · Chile Costeño Rojo · Costeño Red · Red Costeño
Scoville
0SHU
Heat0%
3k–15k SHU · Aggregated ranges from Grow Hot Peppers (12,000 SHU), Spices Inc. (5,000-15,000 SHU), Mr Chilli (7,000-12,000 SHU), and other sources (3,500-5,000 SHU)

The Costeño Rojo is a traditional red chile from Mexico's Oaxaca coast, offering a fruity-smoky flavor with moderate heat. Closely related to the Guajillo, it serves as a spicier substitute in regional moles, salsas, and tamales.

Costeño Rojo peppers are elongated, thin-walled pods of Capsicum annuum that ripen from green to a deep brick-red color. Fresh, they resemble serrano chiles in shape and size, measuring about 5-8 cm long by 2-3 cm wide with a triangular form. When dried, the pods shrink to a leathery, papery texture, typically 7-10 cm in length, with a lightweight feel that crisps easily when toasted. This variety is prized for its complex flavor profile, featuring smoky base notes, bright citrus acidity, fruity and berry-like nuances, subtle sweetness, and earthy undertones that become more pronounced when toasted. It is fruitier and more intense than the milder Costeño Amarillo variant. In Oaxacan cuisine, particularly in the Mixteca region, it is a staple for moles (such as iguana, venado, or negro), salsas, tamale sauces, meat dishes, stews, and rustic table sauces made with garlic, salt, and water. Its heat ranges from 2,500 to 15,000 Scoville Heat Units, providing noticeable spice without dominating. Cultivated for centuries by coastal indigenous communities, it remains largely regional but has attracted interest from chefs since the 1990s for its authentic, hyper-local character. It is often used as a spicier alternative to Guajillo peppers in traditional recipes.

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Backstory

The Costeño Rojo originates from the coastal regions of Oaxaca and Guerrero, Mexico, where 'costeño' translates to 'coastal.' It has been cultivated for centuries as a staple in indigenous coastal cooking and remains a hyper-local variety passed down through family seed stocks. Closely related to the Guajillo, it gained wider recognition through chefs like Diana Kennedy and Rick Bayless in the late 20th century.

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Flavor

Complex fruity and smoky flavor with bright citrus acidity, berry nuances, and subtle sweetness; more intense and fruitier than the yellow Costeño Amarillo variant, with nutty and savory undertones that enhance when toasted.

fruitysmokycitrusynuttysweetberry-like

Culinary uses

moles (negro, amarillo, iguana, venado)salsastamale saucesmeat marinades and stewstable saucessoups and bean dishes

Q&A

Substitutions

GuajilloAnchoMirasol

Related variants

Appearance

Skin
thin-walled and papery when dried
Flesh
thin
Shape
elongated triangular pods
Width
2-3 cm
Length
5-8 cm fresh, 7-10 cm dried
Color dried
brick red to dark burgundy
Color fresh
green ripening to deep red

Origin detail

Region
Pacific coast of Oaxaca (Cañada and Sierra Sur regions)
Country
Mexico

Tags

mexicanoaxacandried-chilemole-ingredientfruitysmokycoastal-origin

Sources

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These references are used to verify what we publish — not as the source of the content itself. Seed catalogs, breeder pages, research papers, and cultivar databases let us cross-check every fact before it lands here. Open any card to read the original or dig deeper.

5 sources · 7 searches · Added May 14, 2026, 07:15 UTC
Origins
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