Washing soda strips grease and oil from fabric, worktops and pans without synthetic degreasers, and pairing it with the right re:gn kitchen and laundry tools finishes the job properly in 2026.
TL;DR: Washing soda (sodium carbonate) lifts grease and oil stains by raising the pH of water so oils lose their grip on fibres and surfaces – it's the base layer, not the whole fix. For stubborn cooking oil on clothes, the Enzyme Laundry Detergent Sheets are the Buy for washing soda for grease stains because the enzymes finish breaking down what the soda loosens. For hob and pan grease, Coconut Kitchen Scourers are the Buy for scrubbing without scratching. Skip using washing soda neat on aluminium or wool.
Why this matters
Grease and oil stains don't respond to plain water because oil is hydrophobic – it repels water and clings to fibres. Washing soda raises the pH of your wash water to around 11, which breaks the surface tension holding oil molecules in place and lets them lift away.
That's why washing soda has been a laundry-room staple since long before 2026, but it works best as a pre-treatment or booster, not a full replacement for detergent. Combine it with an enzyme-based sheet like the Enzyme Laundry Detergent Sheets and you get chemical loosening plus biological breakdown in one cycle.
On hard surfaces – hobs, pans, driveways – washing soda dissolved in hot water does the loosening, and a decent scrubbing tool does the rest. Skip the soda alone and you'll spend twice as long scrubbing.
Who this is for
This guide is for anyone dealing with recurring grease: home cooks with splattered hobs, parents scrubbing food stains out of school uniforms, and anyone with oil-stained work clothes or driveway marks. If you're fighting one stubborn stain a year, a stain stick will do. If grease is a weekly problem in your kitchen or laundry in 2026, washing soda paired with the right tools earns its cupboard space.
What to look for in washing soda for grease stains
Dissolve speed in cold water
Washing soda that clumps in cold water leaves gritty residue on fabric and worktops. Look for a fine granule that dissolves fully in water around 40°C within a minute or two of stirring – anything slower means pre-dissolving in a jug before use.
Concentration and purity
Pure sodium carbonate works faster than blends cut with fillers. A higher percentage means you use less per wash, and it won't leave the chalky film that low-purity versions can.
Compatibility with your fabrics
Washing soda is too alkaline for wool, silk and some delicate synthetics – it can yellow or weaken these fibres over repeated washes. Confirm your grease-stained item is a sturdy natural fibre like cotton or a cotton-poly blend before soaking.
Fragrance-free formulation
Grease-fighting jobs already involve strong smells from cooking oil or engine grease. A fragrance-free soda won't fight with your regular detergent's scent or mask whether the grease has actually lifted.
Packaging that matches how you'll store it
Washing soda absorbs moisture from the air and clumps if left in a paper bag under the sink. A resealable pack or a container you decant it into keeps it usable for months rather than one damp week.
What you pair it with
Soda alone won't finish an enzyme-level stain like bacon fat baked into a school jumper. The tool or sheet you combine it with determines whether the stain actually comes out or just fades.
Top picks: what actually finishes the job
The stain-lifting specialist: Enzyme Laundry Detergent Sheets These contain lipase and protease enzymes that target oil and protein-based stains specifically, which is exactly what plain washing soda can't do on its own. One sheet handles a full 30°C to 60°C wash load, so it slots straight in after a soda soak. Verdict: Buy – this is the pairing that actually removes set-in grease rather than just fading it.
The hob rescue tool: Coconut Kitchen Scourers Coir fibre scrubs baked-on grease off hobs and pans without scratching enamel or non-stick surfaces the way steel wool does. Dissolve two tablespoons of washing soda in 500ml of hot water, apply, then scrub with the Coconut Kitchen Scourers. Verdict: Buy for anyone dealing with weekly hob splatter.
The deep-clean kit: 7-Piece Kitchen Cleaning Brush Set Different bristle heads in this set reach into oven grates, blender seals and pan rims where grease hides. It's more kit than most people need for a single stain, but if grease is a recurring kitchen problem in 2026, the range of brush shapes pays off. Verdict: Consider if you're cleaning more than one greasy surface a week; skip it for a single stain job.
The everyday workhorse: Re:gn Laundry Detergent Sheets For lighter, everyday oil marks – salad dressing on a shirt, butter on a napkin – a standard detergent sheet after a quick soda soak is often enough without needing the enzyme version. Verdict: Buy as the lower-effort option for mild stains.
What to avoid
- Undiluted soda directly on skin or delicate fabric – it looks like a quick fix but the alkalinity that dissolves grease will also irritate hands and can fade or weaken silk and wool over time.
- Mixing washing soda with vinegar-based cleaners – the acid neutralises the alkali instantly, so you lose the grease-cutting effect the moment they combine.
- Soda on bare aluminium pans – it reacts with aluminium and can leave dark staining, so stick to enamel, stainless steel or non-stick surfaces.
Verdict comparison
| Product | Best for | Key number | Verdict |
|---|---|---|---|
| Enzyme Laundry Detergent Sheets | Set-in oil and protein stains on fabric | Works 30°C to 60°C | Buy |
| Coconut Kitchen Scourers | Baked-on hob and pan grease | Pairs with 2 tbsp soda per 500ml water | Buy |
| 7-Piece Kitchen Cleaning Brush Set | Recurring multi-surface kitchen grease | 7 bristle heads | Consider |
| Re:gn Laundry Detergent Sheets | Light everyday oil marks | 1 sheet per wash | Buy |
FAQ
Does washing soda actually remove grease stains? Yes – it raises the pH of water enough to loosen oil's grip on fibres, though set-in grease usually needs an enzyme detergent afterwards to fully lift.
Is washing soda the same as baking soda? No. Washing soda (sodium carbonate) is far more alkaline than baking soda (sodium bicarbonate), which is why it cuts grease more aggressively but also demands more caution on delicate fabrics.
How much washing soda do I use for a grease stain? A common ratio is two tablespoons dissolved in 500ml of warm water for a soak, or half a cup added directly to a full wash load alongside your usual detergent.
Can I use washing soda on wool or silk? No – the alkalinity can weaken and yellow delicate natural fibres over repeated use, so reserve it for sturdy cotton, denim and polyester blends.
How long should I soak a grease-stained item? Between 30 minutes and two hours for fresh stains; older, set-in grease can soak overnight before washing as normal.
Is washing soda safe for septic systems? Used in normal laundry quantities alongside a standard detergent sheet, it behaves like any other alkaline laundry additive – always follow your septic provider's specific guidance if you're unsure.
What removes grease better – washing soda or dish soap? Dish soap breaks down oil through surfactants and works faster on fresh splashes; washing soda works better on set-in, dried grease because of its stronger alkalinity.
Can washing soda damage my washing machine? No, when dissolved properly and used at recommended amounts, but always add it to the water rather than pouring it directly onto fabric or into the detergent drawer undiluted.
One last thing
The grease you can't see is often the problem: dishwashing water below 40°C doesn't fully melt cooking oil, so it redeposits back onto "clean" dishes. Running your washing soda soak or rinse water at closer to 50°C makes a bigger difference than adding more soda.
