Transcribed

Why Are Barns Red?

Sep 11, 2026 · 4m 21s
Why Are Barns Red?
Description

Barns are red across farm country almost everywhere, and nobody ever chose the colour. The answer is rust: iron oxide mixed into linseed oil made a cheap homemade wood preservative...

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Barns are red across farm country almost everywhere, and nobody ever chose the colour. The answer is rust: iron oxide mixed into linseed oil made a cheap homemade wood preservative that killed the moss and mildew rotting untreated timber — and iron oxide happens to be red. Why the convention outlived the chemistry, why Sweden's barns are the same colour for the same reason, and why some dairy country went white instead.

This episode was produced with AI narration and scripting, with human editorial review.

Become a supporter of this podcast: https://www.spreaker.com/podcast/everyday-origins--7337194/support.
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Author Talking Labs
Organization Talking Labs
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