In the beer production process, a significant byproduct is the spent grain, which has traditionally been used as animal feed or treated as waste. In light of this, our guiding teacher and team, based on the principles of agricultural circular economy and sustainable development, have focused on the value-added utilization of spent grain generated during laboratory brewing processes in the development of agricultural processing products. This concept is closely aligned with the 15th Sustainable Development Goal (SDG) of the United Nations, which aims to "protect, restore, and sustainable "