Some commenters explain the real chemistry of burnt umber
3 Sep 21 6:05 PM · 2d ago · 23 comments · 1 source · development 3 of 4
Alongside the puns, a few users offer factual explanations of how umber pigment is actually processed by heating (oxidizing) the raw earth pigment to darken or alter its color.
“It's that they burn the pigment with fire to get it to oxide. When you do that the colour goes lighter.”
chibitbear123.bsky.socialmariana057.bsky.social original poster
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What people said 17 voices · best of 23 · verbatim
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Those made me laugh completely disproportionately! 🤣
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I’ve heard that the pun is the lowest form of humor, but you may have undercut it.
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Same, and I needed (always) a good laugh!
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I'm an umberjack and I'm okay, I use burnt umber every day, I highlight trees, I add brown leaves, I love painting rotten wood, my autumn landscapes all look sad, I'd brighten them if I could...
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Okay, I may have asked this before—Mariana have told Z how brilliant … uh, Ana Z have you told Mari how brilliant … signed, umberstanding little
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I went looking for the answer to what makes a color "burnt" & unfortunately the answer doesn't explain this image either. Maybe the design got mixed up somehow? Idk, but I do know that the raw should be burnt and the burnt should be raw color wise.
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🤷 I've done it in class before. You heat it over a Bunsen burner in a test tube. You can get bit more version, but it more down to the clay in the soil and how much iron is in that.
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Perhaps our ancestors... ...alas that arcane knowledge has been lost to the winds of the ages, or lies slumbering deep in the darkest vaults of The Vatican. 😉
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Idk about umber but my street name is Burntfork. I didn't even know you were supposed to cook the fork. I've been eating wrong my whole life.
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I caught two umbers last time I was in Japan. An old sushi chef I knew prepared one sashimi (raw) and the other he grilled (burnt). Oishi!
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Hey, some people like it browned off. And when you do overcook, it can be crunchy, too. Don't get started on the Siennas, now...
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It's that they burn the pigment with fire to get it to oxide. When you do that the colour goes lighter.
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I prefer air cooking, after it is applied to a canvas, along with assorted other 'flavorings'!
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“Umber at 350 degrees for 20 minutes, then let stand uncovered” wouldn’t fit on the tube.
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What exactly IS Umber and why have I only seen it as paint?
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It's only in season one month a year. Septumber.
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Many don't. Perhaps because no matter how it's prepared or presented, umber is still an acquired taste.
All 4 developments of Bluesky post asking why people can't "cook umber" sparks… →
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