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Re-cure? - 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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Re-cure?

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  • Re-cure?

    First, I built the dome last year and let it set for the winter, covered for the most part but it's been sitting in the weather (rain) all spring and summer. I cured it last fall and even cooked a few pizzas and other things. It worked rather well except for losing heat quickly for lack of insulation. I got cracks in the mortar but no smoke. I freaked out one time when I saw what I thought was smoke rising from the dome but it was steam from the dew cooking off the mortar. My question is ... do I need to re-cure dome now that it has been in the weather before I insulate it? In other words, have the bricks soaked in moisture, or do once cured, they stay cured?

    Secondly, I've seen a lot of people put aluminum foil over the dome before adding the insulation blanket. Is that necessary? What does that accomplish?

    Thanks for any help you can give me!

    John

  • #2
    Re: Re-cure?

    The ceramic fiber insulation I used was foil encapsulated so my first layer of insulation had the foil on it. But the general opinion of the forum members was it foil cover does not allow the CF to breath and traps water. So I perforated the covering with a zillion holes and the next layer of CF I stripped the foil off. Based on my experience and the opinions of the FB gang, skip the foil.

    Since the oven was covered, do you see any condensation under the covering if so you have moisture at least in the outer layer of the brick. I would do a slow small fire and observe the dome for steam and ramp up accordingly. IMHO
    Russell
    Build Link............... Picassa Photo Album Link

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    • #3
      Re: Re-cure?

      In my view, unless the dome has been dried-in to keep moisture off, it is a definite yes to re-curing.
      Lee B.
      DFW area, Texas, USA

      If you are thinking about building a brick oven, my advice is Here.
      Our One Meter Pompeii Oven album is here.
      An album showing our Thermal Breaks is Here.

      I try to learn from my mistakes, and from yours when you give me a heads up.

      Comment


      • #4
        Re: Re-cure?

        If your dome has been exposed to the weather, yes you will have to recure it. If you place foil over the dome between the bricks and the blanket, not only will it create a moisture barrier, but it also won't work as an insulating layer because foil only reflects radiant heat. If it is in contact with the brick the heat will jump straight to the aluminium by conduction as aluminium is very thermally conductive.
        Once your oven is dry, insulated and an outer shell or enclosure finished to keep out (most of) the weather, it can handle heavy rain without having to go back to square one of the curing process. Just a few fires are needed to restore its normal function.
        Last edited by david s; 08-10-2013, 08:36 PM.
        Kindled with zeal and fired with passion.

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        • #5
          Re: Re-cure?

          Thanks for the responses! I think my answers are to re-cure the dome and ditch the aluminum foil. Sounds good to me. But, one more question ... Is it better to cure the dome before installing the insulation blanket and the vermiculite layer or to do it afterward, or is there no difference? Thanks again for the help!

          John

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          • #6
            Re: Re-cure?

            Originally posted by jtnasci View Post
            ... Is it better to cure the dome before installing the insulation blanket and the vermiculite layer or to do it afterward, or is there no difference?

            John
            I cured before insulation, but it was optional at that point. Curing early allowed us to use the oven before adding the enclosure. Either way will do.
            Lee B.
            DFW area, Texas, USA

            If you are thinking about building a brick oven, my advice is Here.
            Our One Meter Pompeii Oven album is here.
            An album showing our Thermal Breaks is Here.

            I try to learn from my mistakes, and from yours when you give me a heads up.

            Comment


            • #7
              Re: Re-cure?

              Thanks Lee. I'd rather finish the insulation first as I have a large canopy over the project that I would have to remove to prevent it from being damaged by the smoke. It's been so rainy that I'd rather keep it up to finish the project and not worry about the weather.

              I have photos of the whole project that I will post soon.

              John

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              • #8
                Re: Re-cure?

                Sounds like a plan.
                Lee B.
                DFW area, Texas, USA

                If you are thinking about building a brick oven, my advice is Here.
                Our One Meter Pompeii Oven album is here.
                An album showing our Thermal Breaks is Here.

                I try to learn from my mistakes, and from yours when you give me a heads up.

                Comment

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