Second trick
Make it a rule to wipe down all the shelves of your refrigerator once a week. But don’t do it with dishwashing detergent. Dissolve a spoonful of baking soda in a liter of warm water. Soak a rag in this solution and wipe the shelves with it.
Use the same cloth to wipe all plastic surfaces. Don’t forget about the seal, door and handle. Pay special attention to those places where bacteria and germs most often accumulate.
I warn you: under no circumstances use chemical compounds to clean or wipe the refrigerator. They often have strong odors, which, in the confined space of the refrigerator, will be absorbed into the food stored in it. Butter will be absorbed especially quickly by this atmosphere. It’s not worth taking that risk.
Third trick
Do not place open containers with leftover food in the refrigerator: salads, plates with leftover food, pots that are not tightly closed. Put it all in food storage containers. Tight lids will prevent odors from “clogging” the confined space of the refrigerator.
Otherwise, different smells will mix and create a mix of unpleasant aroma. It will quickly absorb into all plastic surfaces. The only way to get rid of them is to thoroughly clean the entire refrigerator.
I am sure these simple rules will help you avoid many problems with your refrigerator