Storing grain

Salutations fellow brewers!

I have recently began purchasing my grains in bulk.  I expect it will take me between 4 and 6 months to consume the lot.  I live in Puerto Rico (Hot and Humid) and have decided to store the grains in the freezer.  Can anyone comment on wether or not this is necesary or even a good or bad idea?  Would it matter if its crushed or not?

Thanks in advance for your time

Pepe

I’d expect it to be ok:

http://www.homebrewersassociation.org/forum/index.php?topic=438.0