Water will cool the burn, but it will take a very large quantity of water to cool even a small burn, for an area between 2.5 to 4.5% TBSA, 120 litres or more of water could be needed to cool the burn sufficiently. Water will not prevent contamination, as it is in itself a contaminant, being applied through a contaminated atmosphere onto a sterile burn site. Water will irrigate any vital fluids off site, and finally water will induce Hypothermia, as the recommended temperature is 15 to 20 degrees Celsius, over a period of 10 to 20 minutes. Water temperature is determined by the local climate.