Usually there are 2 circuits going to the kitchen. of which the refrigerator is on one of the two circuits.

The wiring may alternate from one side of the kitchen to the other side. meaning if you turn the breaker that controls the refrigerator off. you ll probably find one or more plugs on the opposite wall that will be off also. These are on the same circuit.

Recommendation: Use you high wattage appliances on the other circuit. not the refrigerator circuit.