
Julie Maruskin shared a very detailed seed-saving technique at the Heirloom Tomato Workshop. Warning – not for the faint-hearted. “The seeds of fleshy tomatoes benefit from the fermentation process, which helps clean the seeds of bacteria.”
To save seeds from tomatoes through the fermentation process, you must follow a set of tried and true steps, which Ms. Maruskin explained to us.
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Choose a pretty, tasty fruit from a healthy plant.
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Cut the tomato open (halves are fine).
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Scoop out the seeds and pulp.
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Place in a jar with as much water as pulp.
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Cover the jar loosely with a lid. You want a little air to get in.
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Label as you go.
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Keep at room temperature and out of direct sun for 3-7 days.
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A layer of good mold will form on the surface. This moldy plaque forms a bacteria-killing anaerobic environment that also boosts germination.
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After the mold forms, scoop it off, and dump everything else into a strainer under running water.
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Rinse the seed and spread them out on a paper plate.
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Label the plates as you go.
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Let the seeds dry two weeks at room temperature.
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When dry, pack the seed in paper packets or envelopes, and label as you go.
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Store in the refrigerator if possible. If not, store at room temperature.