Collaborative research by FORTH’s QMM Lab reveals that organic-molecule-intercalated iron superconductors, despite reaching a high Tc of 39 K, struggle to carry high current. These findings highlight a broader materials-science challenge: while molecular intercalation can significantly enhance the superconducting transition temperature, translating this advantage into practical performance requires equally careful control of disorder and microstructure—including grain connectivity, phase purity, and densification. Only by addressing these factors can these quantum materials progress from laboratory curiosities toward viable high-field superconducting wires.