Drying Seeds:
• Drying seeds at 10 – 25 degrees Celsius (50 – 77 degrees Fahrenheit) and at 10 – 20 % relative humidity using either some type of desiccant (silica gel or activated alumina) or a dehumidified drying chamber (set at the lowest heat setting or no the “no heat” setting) is ideal but air drying is common as well. Desiccants should be replaced every 3 to 5 years and dehumidifiers should be carefully watched so that seeds are not damaged by the heat.
• Seeds should be dried as soon as possible after harvest to avoid fungal and viral growth.
• Drying time is variable depending on the seed and the conditions in which the seed is being dried.
If you can push your nail into the seed, it is probably not dry enough to store!!!
• Ovens are not recommended for drying seeds since heat can damage many seeds