According to experts, the cause is not only from spoiled food but also related to improper storage habits and hygiene.
One of the common causes is food that is not covered tightly. Strong-smelling dishes such as seafood, onions, garlic, durian or cooked food, if not stored in a sealed container, will spread the smell throughout the refrigerator. Expired food or withered vegetables, even a small amount, can also cause prolonged odor.
The refrigerator can become an environment for bacteria to grow if the humidity is high or the temperature is not suitable. These bacteria not only cause odors but can also affect food quality. Therefore, controlling the temperature from 1-4°C and periodic cleaning is very important.
Another commonly overlooked cause is the water container behind the refrigerator. This is where water condenses and accumulates for a long time, easily creating odors if not cleaned. In addition, rubber gaskets on the door of the refrigerator can also accumulate dirt and mold, causing unpleasant odors.
According to recommendations from the US Department of Agriculture, users should check food weekly, clean the refrigerator with baking soda or diluted vinegar, and remove old foods to reduce odors.
To keep the refrigerator clean and odorless, experts also recommend placing a box of baking soda, coffee grounds, or activated carbon in the refrigerator. These ingredients help absorb odors effectively, keeping food fresh longer.
