Hey Rudy,

I can tell you from first hand experience that pollen will stay viable for 3 years. I used to store pollen in 3"x5" glassine envelopes (like stamp collectors use) in a plastic recipe file box, loaded with some desicant packs in the box. Don't think I'd try to freeze pollen, but not sure what it might do.But a cool spot is a good idea.

OM