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Optimal hearth surface material for high heat? - Forno Bravo Forum: The Wood-Fired Oven Community



I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

Ask Me Anything New Forum Feature

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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Optimal hearth surface material for high heat?

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  • Optimal hearth surface material for high heat?

    I'm looking for the optimal hearth firebrick or slab material for high heat pizza baking.

    At 900F+, Fibrament (thermal conductivity of ~0.8 W/mK) burns the bottoms before the top is done. K23 insulating firebrick (thermal conductivity of ~0.2 W/mK) leaves the bottoms underdone, and also is dusty and crumbly.

    I haven't tested them, but standard duty firebricks all have thermal conductivity >1 so it would seem they would also burn bottoms at 900F+.

    I believe I need a food safe material between 0.2 and 0.8 W/mK that could handle abrasion from a pizza peel.

    Terra cotta is one potential material with thermal conductivity in that range. I was also wondering if the higher density insulating firebricks like K32 at ~0.5 W/mK would work.

  • #2
    Re: Optimal hearth surface material for high heat?

    Most of us use standard duty firebrick. If you want the "best" overall, you should probably consider a refractory italian oven imported by forno bravo. The Italians know what works for pizza...
    My Oven Thread: