The time it takes for a mini fridge to cool down and stabilize after being opened depends on several factors, such as the ambient temperature, the initial temperature of the items inside the fridge, the cooling capacity of the fridge, and the frequency and duration of the door being open.
In general, after closing the door of a mini fridge, it should start to cool down and stabilize within a few minutes to an hour. However, for the internal temperature to reach its optimal cooling level and for the air circulation to normalize, it's best to leave the fridge closed for at least 2 to 4 hours.
If you continuously open and close the door, the cooling process will take longer, as the fridge needs to work harder to remove the warm air and cool the items again. It's essential to minimize the frequency of opening the door to help the fridge maintain a stable temperature and be more energy-efficient.
Keep in mind that the cooling time can vary depending on the specific make and model of the mini fridge. Always refer to the manufacturer's guidelines for the most accurate information about the cooling time and optimal usage of your particular mini fridge.