Bicarbonate of soda (baking soda) is an affordable, natural, and remarkably versatile product that belongs in every home. From baking to cleaning, deodorising and stain removal, it performs many tasks without harsh chemicals.
Bicarbonate of soda (commonly called bicarb or baking soda) is a staple in my household. It’s inexpensive, widely available, and useful in so many ways that a small box often replaces multiple specialised products.
Paired with plain vinegar when needed, baking soda covers a huge range of cleaning tasks, yet it’s gentle and biodegradable compared with many commercial cleaners. Below is a practical guide to its uses, precautions, and best tips for getting the most from this humble powder.
The Science Behind Baking Soda’s Versatility
Sodium bicarbonate (NaHCO₃) is mildly alkaline, which helps dissolve grease and neutralise acidic odours and stains. Its fine crystalline structure gives it gentle abrasive properties, making it effective for scrubbing without scratching many surfaces. When combined with an acid such as vinegar, it produces carbon dioxide, water and salt—an effervescent reaction that can help loosen grime and clear mildly clogged drains.
Because it’s non-toxic and biodegradable, baking soda is a popular eco-friendly alternative for cleaning and deodorising. However, avoid prolonged use on delicate stone or certain wood finishes, and always test in an inconspicuous spot first.
Quick Tips for Success
- Sprinkle with ease: Use a shaker or sieve for an even, mess-free application.
- Avoid residue: Rinse or wipe thoroughly after cleaning to prevent a powdery film.
Smart Cleaning Hacks with Baking Soda
Baking soda’s mild abrasiveness and neutralising ability make it an effective cleaner for many household tasks. Apply it dry or as a paste made with water, depending on the job. Below are tried-and-tested uses that work well around the home.
- Carpet deodoriser: Sprinkle baking soda over carpets, leave for a few hours, then vacuum. Add a few drops of essential oil to the powder for a fresh scent. Check your vacuum’s manual first, as fine powder can affect some models.
- Crockery stain remover: Sprinkle bicarb on a damp cloth and gently scrub tea- or coffee-stained cups and mugs, then rinse thoroughly.
- Burnt pot rescue: Soak pans with burnt-on food in warm water with two tablespoons of baking soda overnight. For stubborn burnt-on residues, boil a vinegar-and-water solution in the pot, then scrub (be mindful of strong vinegar fumes).
- Shower and sink scrub: Make a paste of baking soda and water to tackle soap scum, rust marks and hard water deposits. Mixing a little dish detergent with bicarb boosts soap-scum removal—rinse well to avoid slippery surfaces.
- Oven cleaner: Coat the oven interior with a baking soda paste, leave overnight and wipe clean the next day. This helps with light grime but may not remove heavy baked-on food. Use sparingly on self-cleaning ovens to avoid damaging coatings.
- Silver polish: Rub a paste of baking soda and water onto tarnished silver, rinse and buff with a soft cloth. Avoid on delicate antique or plated items.
- Drain unclogger: Pour one tablespoon of baking soda down the drain, followed by three tablespoons of vinegar. After fizzing stops, flush with boiling water. This helps mild clogs but severe blockages may need professional treatment or stronger cleaners.
- Mat cleaner: Sprinkle baking soda on yoga or door mats, scrub gently and rinse.
- Baby gear cleaner: Use a mild paste of baking soda and water to clean toys or highchairs; rinse thoroughly to remove any residue.
- Rust remover: Apply a baking soda paste to rust spots, let sit for a while and scrub with a brush.
Kitchen Tips
- Chopping board odour remover: Eliminate strong food smells by soaking wooden or plastic boards in a water-and-baking-soda solution, or sprinkle and let stand overnight before rinsing and drying.
- Food container freshener: Soak smelly containers in water with baking soda overnight, then wash as normal to remove lingering odours.
- Fridge odour absorber: Keep an open box or bowl of baking soda in the fridge to neutralise odours; replace every three months for best results.
Laundry and Fabric Care
Baking soda is excellent at neutralising smells and softening fabrics. For heavily odoured clothes, pre-soak items in water with a generous amount of baking soda before laundering. Adding half a cup of baking soda to the washing machine helps soften clothes and remove odours. Sprinkle inside shoes or sneakers overnight to reduce smells.
Personal Care Uses
Baking soda appears in some personal care products such as toothpaste, bath salts and natural deodorants. It can soften bath water—adding half a cup to a bath helps soothe skin by neutralising acids and washing away sweat and oils. A light dusting underarms can neutralise odour for some people, though it won’t stop sweating.
Important: baking soda is more alkaline than skin and can irritate sensitive skin or disrupt the skin’s natural pH. Patch-test any topical use and consult a dermatologist if you have underlying skin conditions or concerns. Discontinue use if redness or itching occurs.
- Skin-softening bath: Add 1/2 cup of baking soda to bathwater for softer skin and mild relief from itching; consult a healthcare professional before using for skin conditions.
- Underarm deodoriser: A small amount can neutralise odours, but test on a small patch of skin first to check for irritation.
Bonus Uses
Baking soda is handy when camping—use it to deodorise gear, clean cookware and treat odours in wet or sweaty equipment. It also helps with pet-related smells: sprinkle it on pet bedding before washing or on carpets (vacuum after a few hours) to reduce lingering odours.
- Camping essential: Pack baking soda for cleaning pots, deodorising clothing and freshening gear while outdoors.
- Pet bedding refresher: Sprinkle baking soda on pet bedding before laundering to help neutralise odours.
What are your favourite ways to use baking soda? Share your tips in the comments. If you found these ideas useful, consider saving or sharing this page with a friend.