How to harvest tomato seed? It isn't the standard cut and dry method. It's a wet fermentation method...
This is how much goo came out of the two tomatoes on the left into the jar.
Now I capped the jar with a used lid and ring, set it on the counter to ferment..for a week. Make sure the cap isn't air tight- you want a little air to get in there to help with the fermentation.
So, here it is a week later... October 23.
Drop your cleaned seed into a dish and tuck away in a warm, dry, and safe spot and let totally dry before packing up. You might want to stir the seeds a couple times while drying to make sure they all get separated.