When I first heard the term hearth oven from Chef Daniel Tay, I was wondering if he was talking about earth oven and what on earth was it. I had then decide to buy the book "The Bread Baker's Apprentice" to learn more about bread baking and that was where I learned the term hearth bread. During the third lesson, we baked Fecile and Pain Levure and they had to be baked on the pizza stone. The one used by Shermay School is a round one.Once I went home, I went to search online for the baking/pizza stone which is rectangular and can fit nicely into the oven and I found one. It has finally arrived and I hope to bake on it when the children recover