Engineering tool for grain storage and aeration processes developed by INTA (Grain Postharvest Group of the EEA INTA Balcarce, Argentina) and Iowa State University. In the Air-Grain Moisture Relationships section the user will be able to estimate Equilibrium Moisture Content (EMC), Equilibrium Relative Humidity (ERH) or Safe Storage Moisture Content (SSMC) for different types of grain and environmental conditions. This section also indicates if a certain air condition (T and RH) is suitable for