[eternauta3k]

You could just have a vertical fridge with "tub" drawers which individually contain the cold air.

[bdbdbdb]

And most fridges do, I have a veg "crisper" and a meat drawer, and two boxes for cheese and other things.

I've read that if you can just minimise the amount of airflow in your fridge, even just by filling it with bottled water, it's more efficient as there's less air to fall out when you open the door. Boxes are essentially this