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Vermiculite or Perlite - Forno Bravo Forum: The Wood-Fired Oven Community

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New Forno Bravo Forum Feature

Forno Bravo Forum Community,

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.

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.

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 or Perlite

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  • Vermiculite or Perlite

    I'm sure this has already been answered somewhere, but I can't find it so I thought I'd just ask.

    I have a choice of medium grade vermiculite or coarse grade perlite at my local Home Depot. Which would be better?

    I plan on using it to insulate under my over floor and also to insulate over the dome (both as a mix with concrete and loose over the dome).

    Thanks,

    Shannon

  • #2
    Re: Vermiculite or Perlite

    Perlite on its own is a better insulator, but once mixed with cement there is little difference. I dislike the the fine dust that perlite contains. It is an irritant if you inhale it (wear a mask) never have a problem with vermiculite re this. I can't explain why but if you are mixing with cement a 50/50 mix of perlite and vermiculite makes up a much more workable mix than either of the two alone, particularly if you are making a lean brew.
    Kindled with zeal and fired with passion.

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    • #3
      Re: Vermiculite or Perlite

      Thanks. The Perlite is about $4 less per bag than the Vermiculite for the same size (2cu ft). Didn't know if the coarse texture perlite was better than the medium of the vermiculte, or vice versa. I don't think Home Depot carries it in store for very long each year so I want to go ahead and grab it while I can.

      Shannon

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      • #4
        Re: Vermiculite or Perlite

        You may be able to get it cheaper in larger bags (4 cu ft) from nurseries or hydroponics suppliers.
        Kindled with zeal and fired with passion.

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