When storing tomato seeds, carefully scoop the seeds into paper envelopes that have been labeled. Keep them in a dry location that is consistently cold and temperature controlled. You might keep envelopes in a tin or any other container that could be sealed, along with silica gel crystals to prevent the air from becoming moist.
Can you dry tomato seeds for next year?
Simple dehydration Even while the shelf life of dried tomato seeds that have not been soaked or fermented first is just one to two years, this is more than enough time for gardeners who merely wish to conserve seed from one year to the next.
Do tomatoes need to be ripe to save seeds?
Tomatoes that have reached their full maturity and are free of any diseases make the finest candidates for seed preserving. The seeds can be kept informally by squeezing them out onto a paper napkin and allowing them to dry in the air, but the process of fermentation is a more effective method. 
Before harvesting the seeds, tomatoes should be washed with water to eliminate any dirt. Remove any areas of the fruit that are rotten or open. We use buckets with a capacity of five gallons each to gather the tomatoes, which are afterwards soaked in water.
- As you pull tomatoes out of the water, you should use your hands to make a natural sweeping motion to remove any dirt that could be on them.
- Tomatoes should be sliced open lengthwise and each variety’s pulp, juice, and seeds should be extracted into a separate container.
- Crushing the tomato in a bucket that holds five gallons may be an option for you if you have strong hands.
Make an effort to learn the art of holding the tomato so that the right side is facing up, opening the tomato from the bottom bloom, and then using your fingers to milk the germplasm gel that is located on the center column of the tomato. This will yield the seeds.
This is the most efficient approach. Pour into a receptacle that has a cover on it. Because the fermentation process is slowed by dilution, tomato juice should not have water added in its place. Label the containers and set them away for three days at a temperature that is no higher than 70 degrees Fahrenheit (21 degrees Celsius).
Once or twice a day, give the juices that are fermenting a stir to ensure that the pulpy stuff is completely submerged. Mold, while not dangerous to the seeds, might potentially change their appearance if it is allowed to grow. This will prevent mold from growing.
- After three days, empty out the wine.
- Transfer the mixture to a bigger container that has the capacity to hold at least three times the volume of water, then drain out the water that contains the pulp while leaving the seeds behind.
- Tomato seeds that are viable will not float.
- Repeat the process two or three times to ensure that the seeds are well washed.
Note: not all viable seed kinds sink in water. If you are going to sell seeds for a profit, you should first disinfect them by soaking them in water containing antibacterial bleach at a concentration of 10% for thirty minutes before selling them. The seeds should be agitated and stirred often throughout the seven minute process of rinsing them under cold running water.
Rinsing after the soak is essential in order to meet the requirements of the National Organic Program (NOP), which sets the maximum allowable level of total residual chlorine at four parts per million. After each usage, do complete sanitation on the equipment to remove any risk of Late Blight infection.
Place the seeds in a sifter with a very fine mesh or a window screen. Spray off any residual gel or dirt with a little mist. If you are drying the seeds on a screen, use a water spray rather than your hand to spread them out. Tomato seeds that have been exposed to moisture will adhere to your hand.
You may get rid of excess water by tapping the strainer or rubbing your fingers beneath it. In order to collect the seeds, invert the strainer and slam it down on a paper plate. Alternatively, you may let the seeds to dry on a screen. A drying plate or screen should have the name of the variety and the harvest date written on it.
How to Save Tomato Seeds for Next Year
The seeds need to be let to dry for five to six days at room temperature in a location with adequate ventilation. You should give the seeds a daily stir and crumble with your fingertips to keep them from clumping together. When the seeds are dry, you may separate them by gently rubbing clusters of seeds together between your palms.
In addition to this, we pass the dried seeds through a cleaning screen of size 2.132, which can be purchased at www.horizonherbs.com, should be used to break up any leftover clumps before bagging. Place in a cold, dry, and dark location inside a plastic bag that has a zip lock on it. Label should be placed on the inside of the bag.
The seeds do not need to be refrigerated, although it is OK to do so. Do not freeze seeds. 
Bridget may be seen here at Restoration Seeds standing in front of a number of the drying racks.
Can you grow tomatoes from seeds out of a tomato?
Is it possible to cultivate tomatoes using fresh seeds? – Yes, it is possible to cultivate tomatoes using fresh seeds. You are free to use virtually whatever variety of tomato you choose, from cherry tomatoes the size of marbles to meaty Romas or beefsteaks, or even meaty beefsteaks.
How do you save tomato seeds with paper towels?
How to save tomato seeds without fermenting them Saving tomato seeds without fermenting them is not only possible, but it’s also the best option if you’re short on time. To remove the seeds from your tomato, just cut it in half lengthwise, squeeze out the contents, and spread them out on a piece of paper towel.
- They should be left to dry for about a week on the paper towel.
- When they are entirely dry, you can then just fold the paper towel up and put it in a bag or envelope to store it until you need it again.
- When we try to save seeds in this manner, we occasionally find that the seeds take a long time to sprout, and if we leave any shreds of paper towel on them while we germinate them, we may end up with mold development.
These are the only two drawbacks we have found to this method.
