Collecting Nuka…

Here’s today’s Ash Tenmoku and Nuka glazed Matcha Chawan from last week’s firing. I was fired to ∆10 (2345F) in reduction in my small kiln. It measures 3″ h. x 5-3/8″ and feels real nice in the hands. I never seem to tire of this combination, while it’s only two glazes, every piece fires differently and I’m learning to control the flow of the nuka a bit, by using ridges and marks put in the clay when the bowl is made to “collect” the Nuka as it flows. The pattern on this bowl is a result of collecting the nuka in deep throw rings. Please let me know what you think and/or let me know if you have any questions.

Thanks for visiting…

Tenmoku and Nuka Matcha ChawanTenmoku and Nuka Matcha ChawanTenmoku and Nuka Matcha Chawan

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18 Responses to Collecting Nuka…

  1. I love this! Absolutely a favorite!!!

  2. Christy says:

    Ohhhhhhh, lovely!!!!!

  3. Erik Wold says:

    exciting glaze combo! and the interior shot, what a nice finish. if i might ask, is the Nuka applied especially thick over tenmoku? thanks for the great visuals!

    • shyrabbit says:

      Hi Erik, I don’t mind you asking at all…Generally, I use a medium application of the tenmoku and medium+ application of the nuka. Having said this, I apply this combination mostly by feel and depending on the shape of the piece. If the piece has glaze catching details I will use a little more nuka.

  4. J. Shiloh Gastello says:

    Hello Michael,

    I was curious how much you reduce your glazes toward the end of the firing or do you reduce throughout the firing.

    Thank you Michael.

  5. J. Shiloh Gastello says:

    Hello Michael,

    I was curious how much you reduce your glazes toward the end of the firing or if you reduce throughout the firing.

    Thank you Michael.

    • shyrabbit says:

      Shiloh,
      I start my reduce at 1560F and keep the kiln in reduction all the way to ∆10 (2345F). I posted my firing schedule here on my blog sometime ago and here’s the link: My Firing Schedule

      Let me know if you have other questions you think I might be able to help with.

  6. Adam Yusko says:

    While I love this combo, and I am still somewhat surprised that I do not own one of these pieces yet. I guess I am wondering would there be ways to collect the nuka in various shapes other than rings around the piece?

    • shyrabbit says:

      Hi Adam,
      Yes, this is what I’m working on, trying to get the Nuka to move and collect in all manner of ways, including different shapes. I currently have several large sculptural bowls with various surface patterns and shapes that will be fired soon. I will post images here, regardless of how they turn out.

  7. Eleanore says:

    Michael, this is a very beautiful glaze! Looking back to the recipe, I see that you describe it as white, though it looks bluer to me in these pictures, would you agree? I am trying to revise the recipe to use at cone 6 reduction. I thought I would sub 10% Gersley Borate and 25% Neph Sy for the Feldspar. Do you think this would be a good starting place, or you do have any suggestions?

    • shyrabbit says:

      Hello Eleanore,
      This glaze is actually whiter that it seems in the photo. This is a very strange glaze when it comes to photographing it, it always comes out with a bluish cast, regardless of my lighting or camera settings. In fact, I cannot post images of pots with this glaze on them for sale online because of this, the buyer would likely be surprised.

      Substituting the Gerstley Borate and Neph Sy for the Feldspar will help lower the firing temp. The glaze is likely to be a bit shinier and low in silica as the Neph Sy has less silica than Feldspar. Since Nuka type glazes are high in silica, which help create the creamy opaque glaze finish, my guess is the glaze will be a bit more transparent.

      Good Luck…

  8. Steve says:

    This piece is stunning!

  9. Emilio says:

    This is a beautiful glaze combination. I love it!

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