Brewsan Sodium Percarbonate: Sterilising Powder
Directions: use 30 grams per 9-10 Litres of water for 10 minutes before rinsing. For beer line and keg cleaning use 30 grams per 3 litres of boiling water.
wash thoroughly, then rinse off with cold water. It is not necessary to soak for any length of time, but soaking can help with for a better clean if a build-up of dirt or krausen