Maize has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat or rice. In addition to being consumed directly by humans, maize is also used for corn ethanol, animal feed and other maize products, such as corn starch and corn syrup. Maize is also used in making ethanol and other biofuels.

Maize is widely cultivated throughout the world, and a greater weight of maize is produced each year than any other grain. In 2018, total world production was 1.15 billion tonnes. Maize is generally stored in bulk, silos, or holdings, rather than in bags. If stored correctly, dried grain can last up to 12 months.

Maize falls into categories according to colour, with yellow and white being the most common. The average regional maize output(kg/ha) is as follow image: