How to Clean the OONI Volt 12 Pizza Stone 

@KennyTC63 thanks for your comment. What you have spoken about works perfectly fine for the wood fired ovens. However for these small ovens with thin stones, introducing water (even via a damp towel) could cause the stones to crack. Wood fired ovens have very thick bases made of industrial refractory material like bricks or concrete. The stones in these small ovens are not designed to get wet or to wipe with wet or damp towel especially when hot. Also the other REALLY BIG reason why you wouldn't do this with the OONI VOLT 12 is that it is an electric oven with an electric element above and below the stone.

@shawnkay5462 that sounds yummy! I might try that.

@nicknick7052 perhaps you missed the finer points. The OONI instructions take up about one paragraph and tell you to wait until the stone is cool, brush off the excess and rotate the stone. That's it. In the real world mistakes and minor mishaps occur, just like the two we had in the video. They were unexpected, but they happened. This, I believe would be of use for inexperienced users to see how to deal with mishaps. To have continued on without cleaning the stone in-between making the pizzas would have resulted in a nasty burnt taste on the pizzas following. This is true in any case even without the disasters. The stone needs a frequent sweep at the very least. Also, if there is a build up of food bits and pieces (like cheese) on the base then this just makes it even harder when making the subsequent pizzas. Care must be taken when doing this while the oven is working and if people don't feel comfortable with this then turn it off and wait until the oven is cool. I have done two other videos on cleaning pizza stones and from the comments I am left with the impression that showing people how to do something, even if it is a relatively simple process, gives people more confidence than simply reading a basic instruction and then learning the finer points through trial and error. As the saying goes. A picture is worth a thousand words and a video is worth a thousand pictures. So to answer your question, that's what it was for.