Friday, November 2, 2012

Is indigo toxic? Here is an extract from the paper A Future Vision for Natural Dyeing, 2000:

Ten years ago we tried our hand at indigo production at the village of Tondamnadu near Kalahasti.  The wife of the farmer from whom we leased the land and the tanks told us this story: Ten years before us, somebody tried to make indigo.  At that time chemical fertilisers had newly reached the village, and some sacks of it were stored near the indigo extraction tanks. Three puppies ate some of the fertilizer and became violently ill. One wandered over to the vats where the indigo solution was being beaten, drank some of the indigo froth from the tank, and survived, the other two died.

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