100% pure Sodium Percarbonate, supplied in a zip-lock bag.

Sodium Percarbonate is a fantastic cleaner for brewers, as it reacts with organic matter to produce oxygen, and the resulting bubbles help lift dirt off surfaces with the minimum of fuss. It can also be used as a sanitiser at the right concentration.

Sodium Percarbonate is an excellent cleaner and is also getting a reputation as an "eco friendly laundry detergent" due to it's low impact on the environment.