David, the iris seed I collect, whether for the Seed Ex or for my own use, gets treated in the same way. Dried, after collecting, for a couple of days on a sunny window sill, cleaned, packeted and into a box in the salad compartment of the fridge (under protest from the other user of the fridge!). When I need to use it, or when I receive seed from the Exchange I soak it for a couple of days in water with a drop of washing up liquid and it normally plumps up again. My germination rates have been pretty good so far.