Am i doing it right

Just joined forum and Wife and I made first purchases rice/beans/ oats, cornmeal, flour etc. i went and bought 10 5 gal buckets from Home Depot. most of stuff just left in bag and put in buckets with tops on. As for the rice, bag was to big so poured rice in bucket put top on it. Now i am reading about "food quality buckets, moisture fears etc" is there something I should be doing to insure food stays dry/fresh free from spoil?? also thinking of investing in year worth of freeze dried products any particular brands stand out?? as for water have in
ground swimming pool (going to purchase water purifier what kind?? and have 5/6 water bottles from water dispenser. So any insights/guidance would be greatly appreciated