As to refrigerating the pollen. I put my pollen in a old style 35 mm film canister with some rice. When I took it out of the refrigerator I waited till it reached room temp before i opened it, then allowed it to sit for a couple of hours before using with the cap off. If I were to freeze the pollen I would put it in a film canister with rice and then into a small glass jar and do the same thing I did when I refrigerated it.