The Fuji apple is an apple hybrid developed by growers at the Tohoku Research Station in Fujisaki, Aomori, Japan, in the late 1930s, and brought to market in 1962. It originated as a cross between two American apple varieties — the Red Delicious and old Virginia Ralls Genet (sometimes cited as “Rawls Jennet”) apples.
Fuji apples are typically round and range from large to very large, averaging 75 mm in diameter. They contain between 9–11% sugars by weight and have a dense flesh that is sweeter and crisper than many other apple cultivars, making them popular with consumers around the world. Fuji apples also have a very long shelf life compared to other apples, even without refrigeration. With refrigeration, Fuji apples can remain fresh for up to a year.