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Vermiculte - 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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  • Vermiculte

    Hi all

    I am ordering the vermiculite for the insulation today and have been informed it comes in three grades. Fine 1 mm, medium 3-4 mm and coarse 8 mm. Which grade is best to use? Will the 8 mm be too coarse and not set well with the cement? Could both medium and coarse be used? Any suggestions would be greatly appreciated.



  • #2
    Re: Vermiculte


    Two bags that I bought were the 3-4 mm. I needed one more and bought the same bag at a different store and it was 1mm. The 1mm is like sawdust, I would avoid that. I think the 3-4 is your best bet.

    Check out my pictures here:

    If at first you don't succeed... Skydiving isn't for you.


    • #3
      Re: Vermiculte

      I agree with Les, always do. Medium seems to work best for everyone. Coarse might not hurt, but avoid the fine grain.
      Check out my oven progress here: http://www.fornobravo.com/forum/phot...dex.php?u=4147

      See ALL of my pictures here:


      • #4
        Re: Vermiculte

        Agreed.....no fine stuff, 1/2 of it will blow away when mixing. It also will be less efficient, creating smaller air pockets in the insulating layer.



        • #5
          Re: Vermiculte

          I used the medium as well and my oven holds heat VERY well




          • #6
            Re: Vermiculte

            Thanks for the replies. I've decided to go for the medium coarse.