2. Scoop out seeds (plastic spoon works well). Transfer seeds and attached pulp to a disposable tall plastic cup.
3. Fill with tap water and stir to mix seeds with water. Let seeds settle to bottom and carefully pour off debris until mostly seeds remain. Repeat 3 times.
- Different tomato varieties vary considerably in the number of seeds present in the pulp.
- The described method is "fermentation" and causes the gelatinous sack around each seed to rupture and break down.
- The moldy top layer can be drained off either outside or toilet inside.
- If seeds are allowed to stay in water more than 3 days, they will start to sprout.
- Be sure to label plastic cup with variety and date & description of tomato (i.e., cherry, purple top, red bottom)
- Some folks will allow whole tomato or slices to dry in sun and then harvest.