web analytics
Long Cracks - 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!

Forno Bravo
See more
See less

Long Cracks

  • Filter
  • Time
  • Show
Clear All
new posts

  • Long Cracks


    I waited one week after assembling my oven before starting to fire it up. I started with small fires and let them burn out. Then after seven days, I think I made the fire too big and the temperature reached around 700 degrees on the floor and over 900 on the dome.

    Anyway, noticed some long cracks (about 12 inches long) on the back wall, right wall, and left wall. In addition, a piece of the oven fell off (I looked to see where the next day but couldn't figure it out). There is also a crack developing right behind the arch. See pics. Its difficult to get a good pic of the cracks but they dont seem to be just small cracks - I mean they seem to be deep cracks.

    My questions:

    1. Are the cracks serious? Will it cause the oven to collapse?
    2. Do I need to fix the cracks, and if so, with what?
    3. Is there a fire hazard because of the cracks (the dome is covered with a ceramic blanket and then layered with 20 cms thick vermiculite granules). Should I remove these layers to see if the cracks have gone through the entire oven (i.e. visible on the outside)?
    4. It is the rainy season here - so could this be contributing to more moisture in the dome?
    5. Due to regulations here, I am considering changing to gas from firewood - anyone have any experience with this?
    6. Oh, and finally, how do we get the ash off the floor really well if we cant use a damp cloth (i.e. there is always ash on my pizza).


  • #2
    Re: Long Cracks

    What kind of oven do you have? What kind of mortar was it put together with? It looks like a modular oven, did it crack at the seams, or are the cracks in the oven pieces?

    I think we need a little more explanation to be helpful.
    My geodesic oven project: part 1, part 2


    • #3
      Re: Long Cracks

      How did you repair the problem?