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



Forum Issues Update

Things are progressing in getting things back in order on the Forum! User avatars should be showing up. Attachment and inline images are in the process of being uploaded. We are still looking for a migration path for the Photoplog gallery. Thank you for your patience!
See more
See less

Optimal hearth surface material for high heat?

  • Filter
  • Time
  • Show
Clear All
new posts

  • 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: