Chahan (dish) Chahan (dish) "Chahan" may have originated from Chinese immigrants who arrived at the port of Kobe, Japan in the 1860s. In Chinese, fried rice is called "chǎofàn" (); these same Chinese characters have a Japanese reading of "Chāhan". "Chahan" is a Japanese fried rice dish that is typically fried, and can be cooked by stir frying it in a wok. Rice is used as a primary ingredient, and myriad additional ingredients can be used, such as vegetables, onion, garlic, edible mushrooms such as shiitake, tofu, pork, pork belly, seafoods such as crab meat, roe, salmon, shrimp and octopus, scrambled egg,
Active ingredient as salicylic acid in willow bark or arecoline in areca nuts), because the word "ingredient" in many minds connotes a sense of human agency (that is, something that a person combines with other substances), whereas the natural products present in plants were not added by any human agency but rather occurred naturally ("a plant doesn't have ingredients"). In contrast with the active ingredients, the inactive ingredients are usually called excipients in pharmaceutical contexts. The main excipient that serves as a medium for conveying the active ingredient is usually called the vehicle. Petrolatum and mineral oil are common vehicles. The dosage