Korean chili pepper

Fresh green pods taste grassy and crisp with gentle heat. Ripe and especially sun-dried fruit adds sweetness, light fruitiness, and a faint smoke that is the signature of gochugaru — warmth more than fire, without cayenne’s sharp bitterness.

Korean chili peppers (gochu) are a Capsicum annuum landrace group, not a single named hybrid. Fresh pods are typically 8–15 cm long and about 1–2 cm wide, slender and slightly tapered, ripening from glossy green to bright red. Green fruit (putgochu) is crisp and grassy, often eaten raw with ssamjang, pickled, or sliced into stews; fully red fruit (honggochu) is sun-dried as taeyangcho and ground into gochugaru for kimchi, jjigae, and tteokbokki. Heat for common market types sits around 1,500 SHU when green and commonly 1,500–10,000 SHU across the group; the hotter Cheongyang cultivar is a separate 1983 hybrid and is not this record.

Chili peppers originated in the Americas and reached Korea in the late 16th century via Portuguese trade through Japan, around the time of the Imjin War (1592–1598). Yi Su-gwang’s 1614 encyclopedia Jibong Yuseol records them as nammancho or waegyeoja, and farm manuals by about 1700 already described how to grow them. Within a few generations they became essential to kimchi, gochugaru, and gochujang. Yeongyang County in North Gyeongsang is now one of South Korea’s best-known production districts. A minority of Korean food-history papers read older “gocho” texts as evidence of pre-Columbian chilies on the peninsula; mainstream botany treats Capsicum as a Columbian Exchange crop.