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vermiculite vs. perlite - Forno Bravo Forum: The Wood-Fired Oven Community

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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 vs. perlite

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  • vermiculite vs. perlite

    What is a better insulator, vermiculite or perlite? what is easier to work with? thanks for any suggestions.
    rudi.

  • #2
    k values

    I looked this up several months ago, the source I found indicated perlite is marginally better as an insulator. I don't think the difference is significant and probably varies with the prep (size of particles and how well "puffed" the perlite/vermiculite is). I think they are similar to handle as well. I'd choose just based on cost and ease of acquisition in your area.

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    • #3
      I'm with Maver. Everything I have read shows very similar thermal characteristics. My local Home Depot carries both, and the cost is also similar. I have always worked with vermiculite, so I cannot comment on which is easier, though I know of many builders who have used Perlite.

      I would base my decision on ease of acquisition as well.

      James
      Pizza Ovens
      Outdoor Fireplaces

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      • #4
        Since perlite is white, it's easier to see if the dry ingredients are thoroughly mixed before you add water. Otherwise, there's no real difference.
        My geodesic oven project: part 1, part 2

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