GBtortoises said:I just keep it in the original bag, closed tightly at room temperature. I take out what I will use each week and store it in plastic coffee containers with the lids on them and then reclose the bag. But I also go through a 25 lb. bag about every 6-7 weeks so it doesn't really get a chance to get stale.
The manufacturer's suggestion is to store it in a dry, well-ventilated area. I'd add to that, store in an area with a fairly stable temperature to prevent condensation from taking place.