1. Salt works as a deodorant for your refrigerator
Simply mix a tablespoon of sparkling water and salt and splash some of this mixture into your refrigerator. This is not only 100% natural and safe for your food items as there are no chemicals being used, but the odor is much fresher. You will notice the difference every time you open the door.
Salt helps against mold and bacteria, two of the main reasons for the potentially bad smells in your fridge. Needless to say, you still have to make sure you clean all the shelves regularly. Salt will not help in dirty environments.
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Please make sure to keep the refrigerator at a constant temperature and connected to the electricity grid. Frequent temperature changes cause a lot of fluid accumulation which in turn creates a good environment for bacteria and mold to thrive.