Vermiculite plate to cool the floor in the oven 33X33cm

Do you have problems with your first pizzas getting burnt on the bottom? Then you should try this vermiculite plate. See in the video below how it is used. Working with this one is like night and day.
We use it ourselves every day. Without these plates, all our first pizzas would have had a burnt bitter bottom even though we have the perfect floor for pizza baking for 1 minute.