Chahan may have originated in the 1860s from Chinese immigrants arriving at the port of Kobe.

Chahan may have originated from Chinese immigrants who arrived at the port of Kobe, Japan in the 1860s.

[2] Chahan is a Japanese fried rice dish that is typically cooked in a wok.

[3][1] Rice is used as a primary ingredient, and a wide range of additional ingredients can be used including scrambled egg, vegetables, onion, garlic, edible mushrooms such as shiitake, tofu, pork, as well as seafoods such as crab meat, roe, and shrimp.

[2] The use of pre-cooked and refrigerated rice is also conducive toward enhancing the cooking process.