Oxygen Cleaner - great all-purpose cleaner, cleans with oxygen. Works on
plastic, metal (safe for stainless steel)...we use it to clean kegs, fermentors,
etc. Usage: ~1 oz per gallon of water...a little less if item isn't super dirty, and little more if it has caked on grime.
Active ingredient: Sodium Percarbonate (same stuff as OxyClean, but without the fillers and scent)
Sold by the pound. Minimum order 0.1 lb