Stir the water and continue to skim off the trash. Slowly pour off the water by tilting the container at a slight angle. The water treatment may need to be repeated several times to remove the bulk of poor seeds. After the water has been poured off, the seeds are removed from the container and spread out on a drying rack until dry then stored. Air sorting is another method that can be used to blow off chaff and empty seeds.
Proper storage is necessary to maintain seed viability.
Most seeds with hard seedcoats store for 1-2 years with little loss of viability. The factors that will effect seed viability most are moisture content of the seed, humidity, and temperature. For long term storage a moisture content of 4 to 6 percent is ideal. Seed stored for extended periods should be sealed in air-tight moisture resistant containers. This will protect seed against insects, diseases and mold.