I ground up stored wheat berries to make pizza. I have found out, some time ago now, that you cannot stack buckets with gamma lids 3 high, at least not with heavy food like this, as the lids break. So, I have been eating down to reduce the height of my pantry staple stacks. Wheat berries and oats will now be only 2 buckets high, and I will keep less storage of those in the pantry. This last pizza night emptied a red wheat berry bucket, and I now could finally pour in the wheat from the bottom bucket with the broken lid, it has taken a long time to finish that top bucket off ! I still have soft wheat berries and oats with 3 in the stack, oat bucket is reducing, but the soft wheat berries haven't been used as much as they should, we have been using store bought white flour.....
I guess a better, and cheaper, plan for others to think about would be if you want your stacks 3 buckets high; have the bottom 2 buckets with regular hammer on lids, only have a gamma lid on the top bucket, and use a lid wrench to open the next bucket and pour into the gamma lidded bucket when you rotate ! This still leaves the easy open, color coded lids on top for every day use.