I think your biggest enemy is moisture.
So good moisture barrier is first line of defense.
Ideal temp for storing grain is somewhere between 60-70F.
So 70-80F is not too far off.
And finally if you put it into the garage make sure that rodents will not get to it.
ok, so do you think the moisture barrier you mention that is already in the bags is enough?
don't really need to go spend more $$ on rubbermaid totes, and 10 bags of grain is about 25 buckets, on top of the 20 I already have, so that's a bit much too.