Nowadays, healthy and risk-free foods play an important role in our day-to-day life. So it is necessary to monitor the environmental conditions and parameters which are inside the grain (Barley, Brown rice, and Buckwheat) storage containers and take care of it. In our proposed system a set of sensors is integrated inside the grain storage containers and our prime objective is to provide an effective, secure, easily accessible storage in unpredictable weather conditions. In the process of grain storage, temperature and humidity are two factors that can affect the quality of grains. The overall structure of the proposed grain storage system consists of two components: one is the host computer located in the control room for information processing and prediction of grain situation, and the other is the computer terminal in the granary with grain data acquisition. The main purpose of the system is to acquire data from different sensors and transmit this data wirelessly through IoT (Internet of Things) to access the status of the granary. If the parameters of the grains exceed the specified threshold level, the exhaust fans are automatically ON to reduce the exceeded parameters, namely temperature and humidity. The proposed system has good reliability, maintainability, and cost effectiveness. © 2021 Elsevier B.V., All rights reserved.