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Old November 10, 2018   #2
Nan_PA_6b
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Join Date: Dec 2016
Location: Pittsburgh, PA
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My method of saving tomato seeds involves soaking them in a solution of Oxy Clean laundry detergent (1 tablespoon to a cup of water) for 45 minutes, then gently scrubbing & rinsing. My guess would be that such a treatment wouldn't be harmful for your seeds. Spread them to dry for 2 weeks or more, after.
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