How Bicarbonate of Soda Removes Bad Smells from an Old Fridge

Many people assume that an unpleasant smell inside the fridge means it is time to buy a new appliance. Yet an older fridge can continue working perfectly well when straightforward hygiene measures remove the residue responsible for everyday unpleasantness.

Why do bad smells build up in the appliance?

Unpleasant aromas accumulate when tiny food particles evaporate and cling to the interior surfaces. Even where the motor is running efficiently, inadequate sealing of containers allows odours to spread and affect other stored foods.

Leaving leftovers without suitable protection lets vapours move freely across every shelf. Over time, this combination creates conditions in which unwanted substances become embedded, making a consistent weekly routine of cleaning and organisation necessary.

How does bicarbonate of soda neutralise odours so quickly?

The powder’s chemical structure acts directly on the acidic molecules behind bad smells, triggering a reaction that… Read more

How does bicarbonate of soda work against odours?

This powdered product works as a natural chemical neutraliser, absorbing volatile compounds released by organic leftovers. Rather than simply disguising the problem with synthetic fragrances, it traps gaseous molecules and restores freshness to the inside of the appliance.

Keeping the powder continuously in an open container means that new gases are captured before they can permeate the plastic walls. This passive action protects the quality of provisions and prevents the fridge from passing unusual flavours to stored food.

Below is a video from the YouTube channel A DICA DO DIA COM FLÁVIA FERRARI, which explores the points discussed in this topic in greater detail:

What is the right weekly hygiene method?

Regular maintenance calls for a simple mixture of warm water and one spoonful of the neutralising powder to clean the walls and racks. Using this solution routinely removes dried grease splashes, stopping bacterial colonies from developing unwanted aromas in the internal compartment.

Simply wipe every surface with a soft, damp cloth to remove grease from the shelves without damaging the thermal sealing rubber. The procedure is quick, leaves no chemical residue and ensures the containers remain completely free from any external contamination.

Items for Neutralising Odours

Recommended resources

Elements that help capture unpleasant smells:

1. An open pot of bicarbonate of soda;
2. A container of fresh coffee grounds;
3. Small pieces of activated charcoal.

What care prevents bad odours from returning?

Storing food in airtight pots or dishes sealed with cling film prevents vapours and moisture from escaping. This habit stops the characteristic aromas of cheese, fish and seasonings from spreading, preserving the durability of every stored meal.

Checking the use-by dates of stored products prevents leafy vegetables, ripe fruit and dairy products forgotten at the back from rotting prematurely. Quickly disposing of spoiled leftovers keeps the interior environment healthy and avoids unnecessary wear to the household equipment.

A few daily measures help keep the fridge protected from residue:

• Keep prepared dishes in containers with tightly fitted lids;
• Clean up any liquid spilled on the shelves straight away;
• Replace the pot of bicarbonate of soda every three months to maintain absorption.

When is it worth keeping an old appliance?

If the refrigeration system cools properly and the rubber seal closes the door effectively, the issue is limited to interior hygiene. Replacing a working appliance because of accumulated smells creates an avoidable expense in the household budget.

With simple care and the strategic use of homemade absorbent products, the appliance remains useful for many more years. This routine keeps stored food safe, supporting a practical daily life and a pleasant kitchen without financial waste.