Fuji apple is characterized by a large, red, round shape, the average size of a baseball. The fruit, which is 9-11% monosaccharide by weight and has a dense flesh that is sweeter and crisper than many other apple varieties, is popular with consumers around the world. Fuji apples have a longer best-before date than other apples and don't even need to be refrigerated. Keep them at room temperature for 4 months, and in the fridge for 5 to 7 months.