How to Make Colorful Burning Pine Cones

Throw a couple of these on your roaring winter fire and impress the kids.

Things You'll Need

  • Pine Cones
  • One Salt Or Compound For Color
  • Deep Glass Or Plastic Bowls
  • Newspaper
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Instructions

    • 1

      Pour 1/2 gallon of hot water into a deep glass or plastic bowl.

    • 2

      Dissolve 8 ounces of any one of the following chemicals in the water: alum (thallium) for a bright green flame, strontium chloride for a bright red flame, boric acid for a deep red flame, calcium for a reddish-orange flame, calcium chloride for a yellowish-orange flame, table salt for a yellow flame, borax (sodium tetraborate) for a yellow-green flame, blue vitriol (copper sulfate) or barium for a green flame, saltpeter (potassium nitrate) for a violet flame, or Epsom salts (magnesium sulfate) for a white flame.

    • 3

      Soak the pine cones in the solution for 6 hours.

    • 4

      Dry them for at least three days in a warm, dry area on newspaper or hang in a mesh bag.

Tips & Warnings

  • To get the pine cones looking their best, heat them in the oven at 225 degrees F on a foil-covered cookie sheet. They will open all the way and look fuller.

  • Use only one salt or compound for color.

  • Be very careful handling these chemicals and follow the manufacturer's directions. Some compounds can be poisonous if mishandled.

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Comments

  • dthomas Aug 25, 2007
    i did 400 pine cones in copper sulfate but thay did not work right went i burn them
  • dthomas Aug 25, 2007
    i did 400 pine cones in copper sulfate but thay did not work right went i burn them
  • Seventeen Jul 08, 2007
    Boy am I glad to find you guys! I have tons of pinecones I have collected over the years and I have been wanting to try this for years. I actually thought it would be a good science project for high school kids studying chemistry, then they could give the finished product to their loved ones for Christmas. Couple ???s. Where can I buy the chemicals to make these? How can you achieve the rainbow effect with a pinecone? Or does each pinecone need to be soaked in only one color? It would be tremendously appreciated if I could get the answers to my questions. Can't wait to try it. Signed, Pinecone color crazy in sunny San Diego!

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