The Rural Development Administration in South Korea has developed a hot wind-powered hay production system, which has been patented and is expected to revolutionize the production of hay. The system, developed by the National Institute of Livestock Science, can produce approximately 400 kg of hay per hour and offers convenience in distribution and livestock feeding. It also allows farmers to adjust the moisture content of the hay and provides the advantage of selecting a heat source. This system is set to replace expensive and unstable imported hay, improving the quality and standardization of domestic grass feed, thereby enhancing the competitiveness of the domestic livestock industry. Field demonstrations have been ongoing since June, and a pilot operation is planned for September.