It is generally not recommended to plug a refrigerator and a separate deep freezer into the same outlet in your garage. Refrigerators and freezers are high-powered appliances that require a significant amount of electricity to operate properly. Plugging both of them into the same outlet can overload the circuit and potentially cause electrical problems or even a fire hazard.
To ensure the safe operation of your appliances, it's best to have them plugged into separate dedicated circuits. If your garage does not have multiple dedicated circuits available, you should consider having a qualified electrician install additional circuits to accommodate the refrigerator and deep freezer separately.
It's important to prioritize electrical safety to prevent any potential hazards. Consulting with a professional electrician will ensure that your appliances are properly and safely connected to the electrical system in your garage.