This year I’m also saving seeds from tomatoes. The tomato harvest was not impressive this year, with a lot of green ones, and many bad ones due to blight. I managed to collect seeds from 11 different plants:

All of the seeds have been scraped out:

The seed and water mixture needs to ferment under plastic wrap:

My small tomato seed production :

I wrote an in-depth guide here: How to Save Tomato Seeds

The seeds I saved this year was from Black Plum and Cherry tomato plants, grown from seed saved in 2009.