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  1. gf beranek

    tannic acid

    Oh, why didn't I catch that. Picked and shucked walnuts as a kid, for extra money. hands were stained for days afterwards.
  2. gf beranek

    tannic acid

    Where I live, N. Ca., most of the native tannins are leached out of the leaves and needles. And in the forested areas with deep top soil the tannins are captured by the organic layer, and the streams run clear. But in the serpentine and sandy soils with thin top soil strata the tannins pass...
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