We're often asked how to regenerate/reactivate/refresh small batches of molecular sieve that our customers use in laboratories or other low volume applications.  Here are some simple to follow instructions:

Spread the beads out on a pan and them in direct sunlight for a couple of hours in a well ventilated area.  This will evaporate any solvents you've been drying. Put the sieve beads in an oven at 150 F for an hour, raise the temperture to 250 for an hour and then to 400 F for an hour.

If you've been drying air, nitrogen, or something similarly non toxic, skip the first step.

And whenever you're needing new material, shop online here.