web analytics
Curing process after insulation - Forno Bravo Forum: The Wood-Fired Oven Community

Announcement

Collapse

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!

Forno Bravo
See more
See less

Curing process after insulation

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Curing process after insulation

    My oven has been cured using the 7 day technique of small to large fires and I now have a couple of questions:

    1. do I go through a similar curing process once the vermiculite concrete insulation has been finished?

    2. if so should I cure the oven prior to putting the final render/stucco finish on?

    Thanks
    Jase

  • #2
    Re: Curing process after insulation

    Why not finish the oven, ie. the dome (done!), the thermal blanket (if one is to be used), then chicken wire if a blanket is used and then the layers of vermiculite (ideally 3 x 1" layers) and then a waterproofing render coat.
    I did all this BEFORE i cured as all layers got dried out at once.
    If you are to use a thermal blanket, then the vermiculite cement will not get so hot and will dry out but I would have a couple of medium fires before you crank it up into overdrive for pizzas to dry out the final layers.

    neill
    Prevention is better than cure, - do it right the first time!

    The more I learn, the more I realise how little I know


    Neillís Pompeiii #1
    http://www.fornobravo.com/forum/f8/n...-1-a-2005.html
    Neillís kitchen underway
    http://www.fornobravo.com/forum/f35/...rway-4591.html

    Comment


    • #3
      Re: Curing process after insulation

      Hi Neill.

      What I did was:
      1. completed dome and chimney
      2. let cure for 7 days and then built up the fires slowly
      3. did some cooking in it
      4. fixed some cracks in the mortar on the outside of the dome (none on the inside)
      4. let these dry out naturally
      5. put on the blanket and chicken wire

      So what I need to do now is apply the vermiculite cement mix, then render and slowly build up the fires again?

      Jase

      Comment


      • #4
        Re: Curing process after insulation

        Jase,
        I don't believe that you need to go back to square one with your curing.
        I lit a few fires from small to the final one in only 4 fires for the whole dome and insulation.
        You can follow my build to see.
        I would complete the oven build completely, ie insulation and final render. If you need to tile or put on a colour coat, then it won't get even warm if you insulate properly.
        I would have a medium, a hotter one say 24 hours later (put a door to plug the opening to retain heat and drive that moisture out and then a final fire.
        Keep your eye open for steam or evaporating moisture. If heaps then keep the fire a little retarded than roaring.
        Then, 'she'll be right mate!"

        Neill
        Prevention is better than cure, - do it right the first time!

        The more I learn, the more I realise how little I know


        Neillís Pompeiii #1
        http://www.fornobravo.com/forum/f8/n...-1-a-2005.html
        Neillís kitchen underway
        http://www.fornobravo.com/forum/f35/...rway-4591.html

        Comment


        • #5
          Re: Curing process after insulation

          The vermicrete layer takes lots of water, about 30 L water / 100 L vermiculite. Given that one litre of water makes 1000 L steam that's a lot. How long would it take you to boil a 30 L drum of water dry ? Don't be too hasty. Let your vermiculite layer dry in the sun for a couple of weeks. For a curing fire, a gas burner sitting in the middle of your oven for 24 hrs works really well. Then you can go to some bigger fires, but not to pizza temp, for a couple of days. I've seen the results of too rapid heating through impatience and it always results in cracking.
          Kindled with zeal and fired with passion.

          Comment


          • #6
            Re: Curing process after insulation

            I took my new oven up to pizza temp for the first time last night. It worked pretty well but the outside is hot to the touch, which means even after slow curing it still contains moisture. No cracks and I will maintain a bit of fire in it today to help it dry more.
            Kindled with zeal and fired with passion.

            Comment

            Working...
            X