Is Washing Soda Good for Cleaning? Here’s How to Use It on Different Fabric

When it comes to deep cleaning and natural stain removal, few ingredients are as underrated and powerful as washing soda. While most of us are familiar with baking soda and detergent powders, washing soda often gets overlooked—despite being a multipurpose powerhouse in home care.

But what is washing soda, and is it really safe to use on clothes and household fabrics? In this article, we’ll break down the uses of washing soda, explain how it differs from similar cleaning agents like baking soda and washing powder, and show you exactly how to use it on different types of fabric—including your favorite curtains and table covers.

What Is Washing Soda? 

Let’s start with the basics. What is washing soda? Also known as sodium carbonate (Na₂CO₃), washing soda is a highly alkaline, water-soluble compound that’s commonly used in cleaning and laundry applications.

It is derived from common salt and limestone and is often found in powdered form. It’s more caustic than baking soda and has stronger grease-cutting and stain-lifting abilities. Its high alkalinity (a pH of around 11) makes it a natural powerhouse for removing tough stains, softening hard water, and cutting through oily residues.

Washing Soda vs Baking Soda: What's the Difference?

A common question is: washing soda vs baking soda—aren’t they the same? Not quite.

While they may look similar and both are used in cleaning, their chemical composition, pH level, and cleaning power are quite different.

In short, use baking soda for light-duty cleaning and deodorizing, and choose washing soda when you need a deep, fabric-safe scrub.

What Is the Use of Washing Soda in Cleaning?

What is the use of washing soda when it comes to fabric and household cleaning? Quite a lot, actually. It’s especially useful for:

• Removing grease and oil stains from fabric
  

• Softening hard water for better detergent efficiency
  

• Brightening whites and dull colors
  

• Unclogging drains and pipes
  

• Disinfecting and deodorizing laundry
  

• Pre-soaking heavily soiled clothes
  

From laundry rooms to kitchen sinks, the uses of washing soda are wide-ranging and effective.

Difference Between Washing Soda and Washing Powder

Another common mix-up is washing soda vs washing powder. While both are used in laundry, they are not interchangeable.

Washing powder is a commercial laundry detergent that may contain washing soda, surfactants, enzymes, and fragrance. It's a complete cleaning agent.

Washing soda, on the other hand, is a single-ingredient booster. It doesn’t contain detergents but enhances the effectiveness of whatever detergent you’re using.

So, the difference between washing soda and washing powder lies in composition and purpose:

• Washing powder = all-in-one detergent
  

• Washing soda = stain-fighting, water-softening booster
  

How to Use Washing Soda on Different Fabric Types

Using washing soda correctly is key. It's a strong alkaline compound, so it’s important to test and measure carefully. Here's how to safely clean different fabric types using washing soda:

1. Cotton 

Ideal for: Bedsheets, towels, cotton shirts, table covers, casual wear.

Cotton is durable and can handle the strength of washing soda.

How to Use: 

• Mix 1/3 cup washing soda in warm water
  

• Soak items for 30 minutes before laundering
  

• Wash in machine with regular detergent
  

This method brightens whites and removes stubborn stains from everyday items like table covers and cotton bedsheets.

2. Linen 

Ideal for: Table linen, summer clothing, cushion covers

Linen is slightly more delicate than cotton but still robust enough for occasional washing soda use.

How to Use: 

• Use cold or lukewarm water
  

• Add a small quantity (2 tablespoons) of washing soda
  

• Soak for 15–20 minutes
  

• Rinse thoroughly before machine wash
  

This will remove grease stains and yellowing from linen table covers effectively.

3. Polyester 

Ideal for: Curtains, synthetic dresses, upholstery

Most modern curtains are made of polyester or blends. Washing soda can clean them, but it must be used in moderation to avoid damaging the fibers.

How to Use: 

• Mix 1 tablespoon washing soda in 5 liters of warm water
  

• Gently soak for 15 minutes
  

• Spot test before soaking fully
  

• Machine wash on gentle cycle
  

For curtains with synthetic fibers, avoid hot water and opt for cold to lukewarm to maintain structure and color.

4. Wool and Silk (Avoid) 

Do not use washing soda on delicate fabrics like silk, wool, or cashmere. The high alkalinity can damage fibers permanently. Instead, opt for gentler options like baking soda or specialty fabric cleaners.

5. Denim 

Ideal for: Jeans, jackets, heavy workwear

Washing soda works wonders on oil stains and sweat marks.

How to Use: 

• Pre-soak in warm water with 1/4 cup washing soda
  

• Scrub stained areas lightly
  

• Machine wash as usual
  

Just avoid using it too frequently, as it may fade denim over time.

Pro Tips for Safe Use

To make the most of washing soda without damaging your fabric, keep these safety tips in mind:

• Always do a patch test on delicate or colored fabric
  

• Never mix with vinegar or acids—it may neutralize cleaning power
  

• Wear gloves while handling—it can irritate skin
  

• Store in a dry, air-tight container away from moisture
  

• Avoid overuse—once a month for tough stains is plenty
  

Cleaning Household Items With Washing Soda

Table Covers 

For those messy dinner nights or coffee spills, washing soda helps remove food, oil, and wine stains from your favorite table cover.

• Pre-treat the stain with a paste of washing soda and water
  

• Let sit for 10 minutes
  

• Wash as usual
  

This simple technique revives your linens without needing harsh bleach.

Curtains 

Dusty, dull curtains? Washing soda can lift out built-up grime, especially from windows near kitchens or balconies.

• Remove hooks and rings
  

• Soak in a washing soda solution for 30 minutes
  

• Gently rinse and dry in shade
  

Your curtains will look brighter and feel fresher instantly.

Washing Soda: Eco-Friendly and Budget-Conscious

One of the lesser-discussed uses of washing soda is its environmental benefit. It contains no phosphates, fragrances, or additives, making it a great natural option for people sensitive to chemicals or those wanting to lower their household’s toxic load.

It’s also incredibly cost-effective—just a spoonful goes a long way in boosting your laundry’s cleaning power, especially in hard water regions.

Also Read - Blanket Care 101: How Often Should You Wash Your Beloved Bedding?

Final Thoughts

So, is washing soda good for cleaning? Absolutely—if used correctly. It’s an effective, affordable, and eco-conscious solution for deep cleaning a variety of fabrics, especially durable ones like cotton, linen, and polyester.

From reviving dull curtains to saving a stained table cover, washing soda is a valuable tool in your cleaning toolkit. Just remember to avoid it on delicate fabrics, wear gloves, and store it safely.

P.S. Looking for home linens that are easy to clean and long-lasting? Explore our handpicked range of table covers, curtains, and more—perfect for modern homes and thoughtful upkeep.