The jalapeño or jalapeno is a medium-sized chili pepper. A mature jalapeño fruit is 2–3½ inches (5–9 cm) long and is commonly picked and consumed while still green, but occasionally it is allowed to fully ripen and turn crimson red. It is named after Xalapa, Veracruz, where it was traditionally cultivated. About 160 square kilometres (40,000 acres) are dedicated for the cultivation in Mexico, primarily in the Papaloapan river basin in the north of the state of Veracruz and in the Delicias, Chihuahua area. Jalapeno juice is often used as a remedy for seasonal allergies and other cardiovascular problems.

Jalapeños have 2,500 - 8,000 Scoville heat units. Compared to other chilies, the jalapeño has a heat level that varies from mild to hot depending on cultivation and preparation. Handling fresh jalapeños may cause skin irritation. When preparing jalapeños, hands should not come in contact with the eyes, as this leads to painful burning and redness.

jalapeño peppers
Global G.A.P.