For rice and other grains food grade buckets with sealable covers work pretty well. You toss in some silica packets to keep them dry and they will stay for ages.
Mylar bags are fine, but you need a way to seal them and my vacuum sealer never got hot enough for them.
So, I used my vacuum sealer with plastic, and then dropped them in the mylar. Then sealed the mylar with a hand held sealer.
As you can imagine...it was a pain in the neck.
What is best for shelf life of rice/beans — silica or oxygen absorber? I have heard it said they don’t work well together.
Should I just put a mylar bag over 25# rice bags or should i empty the contents into food grade buckets?
We use an Avid Armor vacuum sealer that works great with the 7 mil mylar bags.