The paramount of the explosion classification should take into account a new explosion mode, called combustion-induced Rapid Phase Transition (cRPT), which occurs when the water produced by a deflagration condenses at the reactor wall and starts cycles of evaporation/condensation driven by the heat transferred from the flame to the water (by radiation), eventually culminating in a severe phenomenon of rapid phase transition. Some evidences of this phenomenon are present in the literature, but they are often considered as detonation or meta-stable or thermal explosion, without further explanation. In this work, we review those literature results in the light of the novel cRPT phenomenon. © Copyright 2014, AIDIC Servizi S.r.l