Extraction, wet-processing, drying and sorting of seeds (ABC)
Watch this video to learn how to extract and clean your seeds. Some seeds, like the ones from tomatoes and cucumbers, require a fermentation process. In other cases, water is only used to clean and extract the seeds from the pulp. Seeds can then be sorted with sieves, a fan or even water to keep only the viable seeds and ensure good germination.
More information and videos at https://www.diyseeds.org.