Copper time

0.5 ppm Cu requires an addition of  0.75 mL/gal 1% CuSO4 solution:

  • 14 gal demijohns:   0.75 mL/gal * 14 gal = 10.5 mL each
  • 3 gal carboy: 0.75 mL/gal * 3 = 2.25 mL
  • 3/4 gal topping jug: 0.75 mL/gal * 3/4 = 0.56 mL

I will stir this in, and we rack in about 1 week.

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