Use this diffusion stone with an oxygen source or an aeration pump to provide your yeast with oxygen pre-fermentation. It can be attached to the end of your "gas in" on your keg with 50cm of tubing to rapidly speed up carbonation.
This stone can also be used for compressed oxygen systems.
Cleaning:
The stone can be sanitised in boiling water and cleaned in a no-rinse sanitiser while running carbon dioxide or air through the stone. If the pores in the stone become blocked from handling, give it a 10 second dip in hydrochloric acid before rinsing with water.