Saving your own tomato seed is an easy thing to do and will save you the cost of buying expensive seed the following year. There are a couple of methods that you can try. In this article we will go through how to air dry tomato seed which you can then sow next spring. (If you want your seeds to last longer, fermented tomato seed tends to be viable for about 3 years - check out our article on fermenting tomato seeds
here).
You cannot save F1 tomato seeds and get the same tomato next year, it will be some variation on one of its parents so will be a complete surprise on how it will turn out!