Aspergillus flavus produces aflatoxins in starchy cereal grains (for example, corn, wheat, sorghum, barley,
millet and rice etc.) starting at a moisture content of about 18% that is, in equilibrium with 85%
relative humidity (0.85 available water) and at temperatures of 12ºC to 42ºC with an optimum at
27ºC to 30ºC [12]