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Is this the right stuff? - 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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Is this the right stuff?

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  • Is this the right stuff?

    I found a local supplier of vermiculite, and just wanted to make sure that this would be good for base and dome? and if so how much? seems kinda expensive ($25/18lbs)

    Heres a pic

    heres the Material safety data sheet for it, it doesn't look like it contains silicone or other not so good stuff


  • #2
    Re: Is this the right stuff?

    That's about twice what I paid.

    You may have better luck looking for a supply house for green houses. Pool builders may have some extra but it may have portland already mixed in with it.

    My oven progress -


    • #3
      Re: Is this the right stuff?

      See if Uline has a distributer in your area. 4 cu ft bags are $26 each


      • #4
        Re: Is this the right stuff?

        is this the stuff ?

        4 Cubic Foot Bag Of Grade 4 Vermiculite S-3393 - Uline

        if so which grade



        • #5
          Re: Is this the right stuff?

          Thats the stuff. I had a heck of a time finding a local source, let alone someone who knew what vermiculite even is! One gut told me he thought it was a sandwich topping. Uh yea right! U line shipped out four bags to me 4.0 cu. ft each. I think the cost total was $120. It arrived as promised in 2 days. Oh, BTW the grade 4 is fine


          • #6
            Re: Is this the right stuff?

            That's it. I used 4 bags in an 8" thick x 48" x 70" insulated slab


            • #7
              Re: Is this the right stuff?

              U line is definitely more expensive than some sources but they have it, are easily located, and the shipment is painless (other than money). When I built my insulated slab I spent several days searching locally to no avail and finally gave up and ordered from U-line. I think it is well worth checking with garden suppliers and such locally but...I certainly wouldn't spend days again!


              • #8
                Re: Is this the right stuff?

                Awesome, Thank you very much for all your reply's. I will be going probably tomorrow as there is one about 20min away from me, do you think the larger or smaller particles will work best. I was thinking the smaller

                Thanks again


                • #9
                  Re: Is this the right stuff?

                  One thing to consider as I just re-read your first post. Vermiculite weighs very little. It's used as a shipping protectant and spill absorbent. A 4 cu ft bag only weighs about 7-8 lbs so you may want to see how much in volume your other source is for the 18 lbs. Just a thought.


                  • #10
                    Re: Is this the right stuff?

                    I purchased my 4 CF bags from a local horticulture shop. I found the distributor for Perlite\Vermiculite in Michigan through the Perlite website and they directed me to the closest place near me. $25 a 4cf bag sounds crazy. I paid $7.

                    Give these guys a call and they should be able to direct you to a local source. They will probably have both Perlite\Vermiculite, but it does not matter what you use.

                    Perlite Institute, Inc.
                    Smuth's Build


                    • #11
                      Re: Is this the right stuff?

                      The grade 4 on uline.ca weights 19LBS, now I'm just confused lol


                      • #12
                        Re: Is this the right stuff?

                        don't sweat it. I probably remembered incorrectly. Uline has a huge distribution warehouse about 30 miles from me so I picked the bags up myself and did not have to pay a shipping cost.