Time to Warm Up! 5 Red and Orange Glaze Recipes

After a long brutal winter, spring is hopefully here to stay. So to go with the warming temperatures, I thought I would share some recipes for warm-colored glazes. Today, in an excerpt from her book Colour in Glazes, Linda Bloomfield shares some glaze recipes for lovely red and orange hues.- Jennifer Harnetty, editor.

Producing a good red or orange glaze is no longer difficult, in fact it’s quite easy and a wonderful range from deep reds to pinks and corals through bright orange to pale peaches can be achieved.

During the late 19th century and early 20th century, radioactive oxides were used to make bright colored glazes. For obvious safety reasons, these oxides are no longer readily available, and are not considered safe.

Colour in Glazes!

A complete guide to getting a fantastic spectrum of colorful glazes!

Learn more and download an excerpt here!

Stains for coloring clay and glaze are now made by a few specialist companies (Mason, Cerdec), which do not widely publish their methods, although they reveal the materials and systems used to make the stains. For example, cadmium-selenium stains were developed to provide reliable reds, oranges, and yellows. Cadmium sulfide with the addition of increasing amounts of cadmium selenide gives oranges and reds. A cadmium-selenium red orange stain can be fired to high temperatures when the stain is incorporated in a zirconium-silicate-crystal matrix; however deep red is only possible at earthenware temperatures.

Copper red can only be obtained in reduction, and the color depends on glaze thickness, kiln atmosphere and position in the kiln. The best reds occur in runny, alkaline glazes containing less than 1% copper carbonate and 5% tin oxide. The oxblood red color is often streaked and mottled, and is caused by colloidal particles of copper metal suspended in the glaze. Local reduction of the glaze is possible in an electric kiln if very finely ground silicon carbide is added to the glaze. The silicon carbide reduces the glaze but not the clay body.

Orange is often obtained in wood, salt, and soda firings by using a flashing slip containing clay and nepheline syenite. Thinly applied shino glazes (thick white glazes made from feldspar and clay) are often orange-red when wood-fired. The iron in the clay reacts with the sodium in the glaze or kiln atmosphere, and turns orange-red if it is reduced and then re-oxidized on cooling.

Excerpted from Linda Bloomfield’s Colour in Glazes, co-published by A&C Black, London, England and The American Ceramic Society, Westerville, OH.



  • Sorry, the pictures in this post are not uploading. I’ve tried a number of ways to open the post without success of having the pictures of the red glazes open. A problem for sure.

  • “5 recipes,” eh? Would those have something to do with all these frames, empty of all but a line of text, all over the page? ‘Cause I don’t see a single recipe. You think you’d check the links before sending out an email linking to the page.

  • If you just click on the frames, the recipes show up.

  • I can’t open these either. Hoping you share again. Thank you.

  • Sorry for the inconvenience, everybody. We are working to discover what the problem is, but are having difficulties because we can’t replicate it here. We are able to see the images. We’ll keep hammering away at it. Thanks for your patience.

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