Kikaida, when you go to ferment the seeds, take some of the seeds (directly out of the tomato) and put them in a fine mesh sieve. Rub them until there is no more jell. Dry them as usual over a couple weeks.
This means skipping the fermentation process, but it should give you seeds for the next time you want to plant them. Of course you could do a germination test too. I'm growing some Lime Green Salad tomato seeds/plants saved back in 2007 this way.
Ask Worth
