📌 Toothpaste tubes: the colored lines do not indicate composition, but guide manufacturing machines

Posted 22 February 2026 by: Admin #Various

Toothpaste tubes: why these mysterious colored lines at the bottom of the packaging? Contrary to popular belief, they do not indicate the natural or chemical composition of the product. These small green, red, or blue rectangles actually have a very different, purely technical function. Discover what these discreet marks present on all your tubes really hide.

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Illustration image © TopTenPlay
Symbolbild © TopTenPlay

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