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Old September 3, 2017   #66
KarenO's Avatar
Join Date: Oct 2012
Location: Vancouver Island
Posts: 5,038

That all sounds very good Robert. The only thing I can see is maybe you are fermenting too long. I don't wait for a certain type of mold mat to form. I am just waiting enough fermentation and mold to form for the gel coats and placenta tissue to break down. For that to happen it generally takes about 3 days. I have found for myself in the past that fermenting too long diminishes the viability of seeds.
perhaps try a shorter ferment and see if that makes a difference.
I made a little pictorial on how to ferment and clean tomato seeds on my Northern Gardener page:

clearly there are many other methods that work for people, this is how I do mine.
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