Sterilizing Coffee Grounds for Plant Fertilizer
Using coffee grounds without heating for indoor plant fertilizer has produced flies.
How long do I bake and what temp is good to sterilize them?
By Lee
Answers: Sterilizing Coffee Grounds for Plant Fertilizer
Read answers for this question below.
By
12/27/2011
They have been boiled, are as close to sterile as anything. Mix well with soil, add minerals.
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