I’ve been wondering if something sitting on top of the beans in the hopper (eg a bag of rice) would stop new oxygen reaching the beans as their level drops. Ideally, the hopper would be cylindrical and the object a simple disk, but mine is the usual conical shape. Or am I over-thinking this?
Moving coffee outside of the bag in which it came almost certainly will introduce more oxygen than leaving it alone.
Leaving coffee in a hopper open to atmosphere on bottom and storing a highly porous material on top (ie bag of rice) exposes it _constantly_to a fresh supply of oxygen.
Best place to keep coffee is, broadly, in the bag in which it came, inside a plastic zipper bag if it’s not a foil lined bag, and grinding to order.
The Sage built in grinders have a switch to close the bottom of the hopper and a lid, but I wouldn’t use it for storage, myself.
I would think that a plastic bag of rice is anything but porous.
IME storing beans in a foil bag that I open and re-open every day accelerates oxidation even though I roll the top to expel all air. I suppose this is less noticeable if the bag runs out very quickly.