NB: we do not recommend the instructions on this product and continue to recommend you drain off solution and use the sterilised equipment immediately without rinsing or drying.
Sodium Metabisulphite creates an inert gas called Sulphur Dioxide (SO2) when mixed with water into solution. Both the solution made and the gas are actually doing the "sterilising". The solution by contacting the surfaces itself, and the gas by pushing out oxygen from inside the container being sterilised. This is very important when we come to bottle a brew as it means the brew is "cushioned" by the gas and this helps to protect it from oxidising and infections. For carbonated brews it also reduces the amount of sediment formed in the bottles. Use to sterilise/sanitise all your brewing equipment that has been first cleaned before this step.Use 1 teaspoon of powder per litre of cold water to make a solution.Pour some solution into fermenters, bottles etc, swirl around and leave for 15 minutes before draining out. Run solution over other items like stirring spoons, thermometers before use. Drain solution out of equipment but do not rinse or dry before using. Use immediately once sterilised.
NB: Long term exposure to metals will eventually corrode so do not use on Stainless Steel kegs, Stills or Rotokegs. Limit exposure to rubber parts such as o-rings and bungs.
Equipment must be cleaned correctly before using this steriliser.