Abstract: A simple device for separating pans of food stored in a vertical array, preventing the contents of the pan below from contacting the bottom of the pan above. The pan stacking device is used two at a time along with conventional food storage pans as commonly found in the food preparation industry. The ends of the devices include preferably intermittent or staggered shoulders for fitting snugly to the flange rims of the pan below and the outer surface of the pan above, thereby maintaining the stacked pans in relatively sturdy, stable position. The preferred embodiment of the pan stacking device is adjustable so as to fit food storage pans and containers of various sizes.