Leftover lime in the kitchen can be used to reduce refrigerator odors, here are the steps

how to reduce refrigerator odors with lime | illustration photo: Gemini AI

Brilio.net – A smelly refrigerator is not always a sign that there is rotten food in it. Bad smells in the refrigerator often arise from a combination of various foods stored close together — leftover side dishes, vegetables, or even old plastic wrapping. These odors build up slowly and eventually can be smelled every time the refrigerator door is opened.

Lime contains citric acid and natural essential oils in its skin which are known to help suppress organic odors. The way it works is not to cover up the smell with citrus aroma, but the citric acid reacts with nitrogen and sulfur-based odor compounds – the two types of compounds that are the most common causes of unpleasant odors in the refrigerator. The most practical thing is that there is still enough remaining lime juice that is no longer used for cooking.

How to Use Lime to Reduce Refrigerator Odors

1. Put the leftover lime halves in the refrigerator

This is the simplest method without any additional preparation — just use the remaining squeezed lime for cooking or drinking. Lime peel contains limonene and essential oils which continue to evaporate slowly in cold temperatures and help neutralize odor compounds in the air in the refrigerator. This method works best for mild to moderate odors, not for a refrigerator that is already very smelly because there is rotten food that hasn’t been thrown away.

Material:
– 2–3 lime halves remaining juiced
– Small plate or open container

Ladder:
1. Make sure the remaining lime is still in good condition — not moldy and not slimy.
2. Place the lime halves facing up on a small plate so that the surface of the juice is facing the refrigerator air.
3. Place it on the middle shelf of the refrigerator and leave it for 1-2 days, replace it with a new one if it dries out or starts to get moldy.

2. Apply lime juice inside the refrigerator walls

This method is more active than simply placing lime — citric acid is applied directly to the inside surfaces of the refrigerator to clean and neutralize odors that have settled on the walls or shelves. This is not just a scent, but a mild cleanser that helps remove organic odor residue from the plastic and rubber surfaces of the refrigerator. Do this when the refrigerator has been partially emptied for routine cleaning.

Material:
– 1–2 limes (squeezed)
– Clean cloth or kitchen tissue
– Sufficient clean water

Ladder:
1. Squeeze the lime, collect the water, dilute with a little clean water in a 1:1 ratio.
2. Dip a clean cloth or tissue into the lime juice solution, then wipe the inside of the walls, shelves and drawers of the refrigerator.
3. Leave it for 10–15 minutes, then wipe with a clean cloth dampened with plain water to rinse off any remaining acid before putting the food back in.

3. Combination of Lime and Baking Soda

Baking soda itself is already known as an odor absorber in the refrigerator, and combined with lime the results are more effective because the two mechanisms work together — baking soda absorbs odor molecules and citric acid neutralizes alkaline-based odor compounds. This combination is suitable for refrigerators where the smell is quite annoying and just one ingredient is not enough. Place it in a corner of the refrigerator that doesn’t block air circulation so it can work optimally.

Material:
– 2 tbsp baking soda
– Note from 1 lime
– Small open container (small bowl or large bottle cap)

Ladder:
1. Pour baking soda into a small container, smooth the surface so that the contact area with air is wider.
2. Drizzle lime juice over the baking soda — there will be a mild foaming reaction, this is normal and will stop within 1–2 minutes.
3. Once the reaction is complete, place the container on a refrigerator shelf and leave it for 2–3 days before replacing.

4. Dried Lime Peel as a Long Term Odor Absorber

Dried lime peel still contains essential oils, although the levels are slightly reduced — but because they last longer and don’t mold quickly, this method is more suitable for long-term use in the refrigerator. Dry peels also don’t drip or leave excess moisture on refrigerator shelves like fresh orange halves. This is a good choice for those of you who don’t want to change ingredients too often.

Material:
– Peel from 2–3 limes
– Baking sheet or tray for drying
– A small open container or thin cloth for wrapping

Ladder:
1. Collect fresh orange peel, cut into small pieces if necessary, then dry in the sun for 1–2 days or in the oven at a low temperature (60–70°C) for 1–2 hours until completely dry.
2. Put the dry skin in a small open container or wrap it loosely in a thin cloth to allow air to flow.
3. Place in the refrigerator and leave for 5–7 days before replacing with new dry skin.

General Questions

1. Can lime be used together with other odor absorbing materials such as activated charcoal?

Yes, and they don’t interfere with each other. Activated charcoal works by physically absorbing odor molecules through its pores, while lime neutralizes odor compounds chemically. Placing the two in different positions in the refrigerator actually provides more complete odor protection.

2. How often is it ideal to replace the lime in the refrigerator?

For fresh orange halves, replace them every 1–2 days because the surface dries out quickly and becomes susceptible to mold in the damp environment of the refrigerator. For dry skin, it can last up to a week. A sign that the material needs to be replaced is when the refrigerator starts to smell again or when the surface shows mold spots.

3. Can lemons replace limes for the same purpose?

Yes, because the citric acid and limonene content in lemons is similar to limes. The difference is more a matter of availability and price — limes are easier to find and cheaper in Indonesia. Lemons have a slightly different aroma but their working mechanism for neutralizing odors in the refrigerator is basically the same.

4. Why does the refrigerator smell often reappear even after cleaning it?

Because the main sources of odors are often overlooked when cleaning — refrigerator door rubber, hard-to-reach shelves, and the bottom vegetable drawer are the places that most often harbor hidden odors. In addition, food that is stored without a lid or tightly wrapped will continue to release steam that builds up to create new odors.

5. Is this method also effective for a refrigerator that smells because of a power outage and the food doesn’t cool for long?

In this case, lime alone is not enough. The smell caused by food that has rotted due to a power outage leaves behind a much more concentrated odor compound that sticks to the inside surface of the refrigerator. The first step is to throw away all damaged food, then wash the entire inside of the refrigerator with a solution of water and vinegar or baking soda, only then can lime be used as a further odor control step.

(brl/tin)