This paper presents the results from the development of a machine to enhance and develop the post-harvest process of Philippine Farming, specifically drying. It aims to help the farmers increase rice yield, productivity and therefore, increase income. The Solar-Powered Paddy Grain Humidifier-Dryer consists of a power supply with two alternating batteries charged with solar panels, a control system to automatically control moisture content, temperature and humidity depending on the desired moisture content of the user, a humidifier and dryer that provides heat and humidity output and a GSM module for updated inventory. The users of the machine (farmers) are guided by a manual that instructs them in layman's term on how to set their desired moisture content by simply pushing a button. This maximizes rice production from 83% to 93% which shortens the processing time by 25–50% compared to traditional ways of drying and existing drying machines that can be used for all seasons.