These results describe a family of MOF-inorganic glass composites, which we call MOF-CIGCs, obtained by pelletisation of ZIF-8 and 50(Na2O)-50(P2O5), followed by heating above the glass transition temperature of the latter. Unlike previous efforts, the ZIF-8 structure was maintained without loss of crystallinity upon heating. According to DSC, the addition of ZIF-8 to the glass also delays recrystallisation of the inorganic glass upon heating, linked to its ability to remove (recrystallisation promoting) adsorbed surface water from the glass itself.