Fapucational : Historically, Indigo Was A Natural Dye Extracted From Plants, And This Process Was Important Economically Because Blue Dyes Were Once Rare. Nearly All Indigo Dye Produced Today — Several Thousand Tons Each Year — Is Synthetic.
Historically, indigo was a natural dye extracted from plants, and this process was important economically because blue dyes were once rare. Nearly all indigo dye produced today — several thousand tons each year — is synthetic.
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original: https://reddit.com/r/Fapucational/comments/12tman/historically_indigo_was_a_natural_dye_extracted/
