Replace the inside of the fridge instead of cleaning. Just pull of the thin layer and trow it in the plastic recycling bin.
A filter that cleans the air of your fridge. One in a while you need to buy a new one.
Alternative fridge power
Power you fridge with bio-gas tanks that you need to refuel. This hybrid model could support a long lasting product while making the consumer aware of its consumption of energy.
Within these first ideas, the benefits of bringing in a consumable are mostly economic and not ecologic. Fore now I won’t dive deeper into this business model.