Refrigerators / cooling could be done with salt / no electricity
Ice could be harvested for refrigeration
Fridges could be powered by solar energy
Refrigerators / kitchen appliances could be hidden
Produce / food could be stored differently to last longer
Evaporative cooling / refrigeration could reduce food waste
Reusable beeswax food wraps could be used instead of plastic
Refrigerant emissions could be environmentally disposed / alternative refrigerants could be used
Wine could be cooled instantly