Maybe just subdividing a little? I was thinking of, like instead of separating out each single dose, separate the bag into 4 day jars, so it's less work on the dividing side but also less oxidation of the beans overall? For you, I think you gotta just try it with the rice and report back. You gonna use a sealed bag on the rice like a ziploc? Or something stretchy but permeable and rely on the rice mass and displacement to slow the air?