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Is it true that Firebricks crumble if exposed to water. - 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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Is it true that Firebricks crumble if exposed to water.

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  • Is it true that Firebricks crumble if exposed to water.

    I went to the mason supplier whom I trust and told him I was thinking of building a pizza oven and needed some firebricks. They have them for 1.25/ech , red (soft), yellowish & redish (harder) , not sure what the density indicates, but he said the harder are for higher temp, but then he cautioned me on getting them wet, he said if I get them wet they will crumble like a cake, he said leaving them in the rain will cause them to crumble. People who use them to build open pit fireplace have problems with them crumbling when rain gets to them so he always tell them to use a metal cover.
    Now I've read the instructions and it says to soak them before cutting & before applying mortar.
    Can anyone confirm that this is a true statement, or is it just if left exposed to really long periods of moisture that they fall apart. I imagine that they will never be soaked after oven is built, but I' concerned that I culd have a pllet next to the build site which could get soaked and fall apart in some heavy rain, if left uncovered. Any advice is appreciated.
    -rob

  • #2
    Re: Is it true that Firebricks crumble if exposed to water.

    mine sat out all summer while I was building, they didn't crumble. They also sat in water while soaking, no crumbling. This is not something I am familiar with- my inlaws had an outdoor grill thingy made of firebricks for years, no cover, and it didn't crumble either, until someone ran into it with a car...
    Elizabeth

    http://www.fornobravo.com/forum/f8/e...html#post41545

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    • #3
      Re: Is it true that Firebricks crumble if exposed to water.

      Yeah, that's not true. Brickyards store them outside, after all, and I kept mine out in the rain for the better part of a year with no difficulty. What does he think they are, adobe blocks?

      Even if it were true, your oven will be enclosed and dry.
      My geodesic oven project: part 1, part 2

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      • #4
        Re: Is it true that Firebricks crumble if exposed to water.

        Thanks for the insight, just to be sure I'm soaking a few I got as samples in a 5 gallon bucket ... I'll see how they hold up, if they fail then I find a different supplier.

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        • #5
          Re: Is it true that Firebricks crumble if exposed to water.

          The only problems with leaving fire bricks out in wet weather for a long period is that they get mouldy/green.

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          • #6
            Re: Is it true that Firebricks crumble if exposed to water.

            Some of my left-over firebricks have started crumbling a bit after being left outside for an entire rather cold winter... so a lot of wet freeze-thaw cycles will do it.
            "Building a Brick oven is the most fun anyone can have by themselves." (Terry Pratchett... slightly amended)

            http://www.fornobravo.com/forum/f8/p...pics-2610.html
            http://www.fornobravo.com/forum/f9/p...nues-2991.html

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