Citric acid is acidic and can dissolve mineral deposits such as limescale.
That makes it potentially useful for descaling—but only when the washing machine manufacturer allows it.
Some manufacturers specifically advise against household acids because they may affect rubber seals and other components.
Baking Soda
Baking soda is mildly alkaline and can help with certain odors and light residues.
However, baking soda should not be considered a dependable solution for established mold inside a washing machine.
Vinegar
Vinegar is also acidic and can help dissolve some mineral deposits.
But again, manufacturer recommendations matter.
For example, Bosch advises against using vinegar and citric acid in its washing machines because repeated exposure to acids can damage or deteriorate rubber components.
Should You Mix Citric Acid and Baking Soda?
It may look impressive, but the reaction does not make the combination a superior washing-machine cleaner.
When an acid such as citric acid reacts with baking soda, they neutralize one another. The fizzing you see is primarily the result of a chemical reaction producing carbon dioxide.
That means you are reducing the properties that make each ingredient useful on its own.
If you need to remove mineral deposits, use an approved descaling method. If you need to deal with dirt or odors, clean the areas where residue actually accumulates.
The Safest Way to Clean a Washing Machine
The best starting point is usually the cleaning program provided by the manufacturer.
Depending on the brand and model, the program may be called:
Drum Clean
Eco Drum Clean
Tub Clean
Machine Clean
Some manufacturers recommend running a drum-cleaning cycle regularly, depending on the machine and how frequently it is used.
Always check the owner’s manual before adding a cleaning product. Some cleaning programs are specifically designed to run without detergent or other additives.
How to Clean Your Washing Machine Step by Step
1. Empty the Machine
Remove all clothing from the drum.
Check inside the drum and make sure there are no forgotten items such as coins, tissues, or small pieces of clothing.
2. Clean the Rubber Door Gasket
If you have a front-loading washer, gently pull back the folds of the rubber gasket.
Remove visible:
Hair
Lint
Coins
Paper
Detergent residue
Dirt
Wipe the gasket with warm water and a soft cloth.
For some models, the manufacturer may allow mild soap or mild detergent. Follow the instructions for your specific machine.
Most importantly, dry the gasket thoroughly afterward.
3. Clean the Detergent Drawer
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