HotPepperIndex
Capsicum annuum

Thai Bird's Eye

Mexico (native); cultivated in Thailand and Southeast Asia
Hot
Also known asBird's Eye Chili · Thai Chili · Prik Kee Noo · Prik Ki Nu · Cili Padi · Thai Dragon Pepper
Scoville
0SHU
Heat0%
50k–100k SHU · Wikipedia, PepperScale, Chili Pepper Madness, The Spruce Eats

The Thai Bird's Eye pepper (also known as Bird's Eye Chili or Prik Kee Noo) is a tiny but fiercely hot chili famous across Southeast Asia for its explosive fruity heat and vibrant color. A staple in Thai curries, salads, and stir-fries, it delivers clean, sharp spice with a distinctive peppery-fruity bite.

Thai Bird's Eye peppers are small (1–2 inches / 2.5–5 cm long), slender, tapering, and often slightly curved fruits that grow upright on the plant. They start bright green when unripe and ripen to vivid red (occasionally passing through yellow, orange, or purple shades). The thin-skinned, juicy pods are extremely pungent. Plants are compact, productive perennials (often grown as annuals) that thrive in hot, humid tropical climates. Heat level is consistently very high (50,000–100,000 SHU), roughly 10–20× hotter than a jalapeño but below habanero intensity.

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Backstory

All modern chili peppers trace back to Mexico, Central, and South America. Spanish and Portuguese explorers carried Capsicum annuum seeds to Southeast Asia in the 16th–17th centuries during the Columbian Exchange. The variety quickly adapted and became a cornerstone of Thai, Vietnamese, Indonesian, Malaysian, and other regional cuisines. In Thailand it is known as *phrik khii nuu* (“mouse-dropping chili”) due to its tiny size and is essential in everything from fiery curries to fresh salads and dipping sauces. It remains one of the most widely used hot chilies in global Asian cooking today.

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Flavor

Bright, fruity, and peppery with a clean, sharp heat that lingers. The thin skin and juicy flesh give a distinctive fresh bite. Green pods are brighter and grassier; ripe red pods are sweeter and more intense.

fruitypepperyearthysharpclean heat

Culinary uses

Thai curriesstir-friessalads (som tam)sambalsdipping saucessoupsmarinadespickledchili flakes/powdereaten raw as condiment

Substitutions

serrano peppercayenne pepper

Related variants

Appearance

Size
1-2 inches (2.5-5 cm) long
Skin
thin, smooth
Color
green (unripe) to red (ripe), occasional yellow/orange/purple
Flesh
juicy, thin-walled
Shape
small, slender, tapering/pointed, slightly curved

Growing

Sun
full sun (6-8+ hours)
Soil
well-drained, fertile, pH 6.0-7.0
Notes
Highly productive in hot/humid conditions. Upright fruits make harvesting easy. Excellent for containers or small gardens. Start seeds indoors 8-10 weeks before last frost. Tolerates heat well but sensitive to frost.
Water
consistent moisture (avoid waterlogging)
Harvest
pick green for milder flavor or fully red for maximum heat
Plant height
18-36 inches (45-90 cm)
Days to maturity
75-90

Nutrition

Per 100g approx
Fiber: good source · Notes: Excellent source of vitamin C, vitamin A, antioxidants, and capsaicin; supports immunity, metabolism, and circulation. · Calories: 40 · Potassium: good source · Vitamin a: high · Vitamin c: very high · Vitamin b6: good

Origin detail

Region
Southeast Asia
Country
Thailand
Breeder
Traditional landrace (Columbian Exchange introduction)

Tags

thaibirds-eyesoutheast-asianprik-kee-noofruity-heathotcurrystir-frysambal

Sources

Huge shout-out to the breeders, growers, researchers, and seed savers linked below — their independent work is what lets us fact-check our own. Go visit them.

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.

4 sources · Added May 7, 2026, 14:50 UTC · Updated May 11, 2026, 13:57 UTC
Origins
A World of Capsicum
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