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Vermiculite Layer Question - 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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Vermiculite Layer Question

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  • Vermiculite Layer Question

    This is a repost from my original build thread. I do apologize for this, but... if your not watching my build you may not realize I need help!!

    Its been 12 days since the vermiculite/concrete pour. I have read numerous times that this stuff takes a long time to dry and when it does it has a cork like consistency.

    By cork like, does that mean it is soft and can be scraped away with a finger nail or did I do something wrong? I am asking before I get on with the oven floor which brings me to another question... If this mix is so soft how do you use a notched trowel to spread the firebrick mortar to lay the brick?

    Thanks in advance!

    A change since my last post... It is harder now but scrapes away very easily. Im guessing thats the nature of this mix??
    My Picasas Web Album

  • #2
    Re: Vermiculite Layer Question

    Originally posted by ArkansasOven View Post
    By cork like, does that mean it is soft and can be scraped away with a finger nail
    Thats how mine was and the oven ended up ok..
    The English language was invented by people who couldnt spell.

    My Build.



    • #3
      Re: Vermiculite Layer Question

      This is exactly how it's supposed to be. It's flaky around the edges, and can be broken loose with a fingernail. I think the phrase "cork like" brings to mind the tough smooth wine bottle corks. Think instead of those old fashioned porous cork tiles that were popular in the seventies of the last century.

      The sand/fireclay mixture is just a leveling medium. You can lay it down as a dry powder, and once you've got the brick floor laid the way you want it, you can wet the floor to solidify the mixture.
      My geodesic oven project: part 1, part 2


      • #4
        Re: Vermiculite Layer Question

        Sorry for my delayed thank you, but... Thanks! Glad that I am still on the right track. I was beginning to have doubts and that scared me.

        Great community here!
        My Picasas Web Album