When you slow dry, you have to wait… and wait… Harvested simsim, when slow drying, is left to hung for up to a month. Basically, all you have to do is to keep collecting whatever of the early fruits that have been released by natural shattering of the simsim pods as the crop ripens. Keep waiting and collecting, until the crop is fully dry. To know you are almost there, the simsim crop stalks will turn brown in color and will be able to hear a crackling noise as the pods pop open on their own.