You can make your own refractory snow…just fire the inside to 800F for a second. This melts the snow on the inside which freezes instantly forming an extremely

You can make your own refractory snow…just fire the inside to 800F for a second. This melts the snow on the inside which freezes instantly forming an extremely rigid layer. Personally I would not trust a snow oven to make a regular pizza…though it could be handy to make frozen pizzas in.