The Hydrogen Electric Research Team at the Korea Electrotechnology Research Institute (KERI) has achieved a groundbreaking milestone by developing the world's first integrated system capable of producing liquid hydrogen and evaluating safety valves in a single step. This innovation, unveiled on 'Hydrogen Day,' is poised to revolutionize the hydrogen industry. Liquid hydrogen, produced by cooling hydrogen gas to -253°C, offers enhanced safety benefits in storage and transportation, potentially facilitating wider public acceptance. KERI's device addresses the challenge of verifying safety valve performance under real-world liquid hydrogen conditions, crucial for industry safety and quality control. The portable design of the device allows for easy installation and operation for companies, promising seamless testing in small spaces. Director Rock-kil Ko highlighted the device's significance in enhancing the nation's hydrogen industry competitiveness. Future plans involve expanding the device's capabilities, collaborating with industry partners for regulatory compliance, and potential technology transfer. KERI's expertise in cryogenic cooling technology and long-term liquid hydrogen storage underpins this advancement, positioning the institute as a leader in liquid hydrogen innovations.