Brewery tank implosion Three main causes - Condensation of steam if cold water is sprayed into a tank filled with steam, the steam condenses (tank implodes if there is no way of relieving the vacuum: 1 m 3 steam weighs 560 g 1 m 3 water weighs 1000 kg) - Reaction of CO 2 with caustic : CO 2 (gas) combines with NaOH to form NaHCO 3 (solid) Less rapid than thermal condensation, but needs to be man..