Vinegar and bicarb cleaning works brilliantly for cutting grease, lifting soap scum, deodorising and shifting light limescale, because white vinegar is a mild acid and bicarb soda is a gentle abrasive base. But they are not a cure-all: mixed together they largely cancel out, and each can damage the wrong surface. Used separately and on the right jobs, this cheap duo replaces half your cupboard.
Why do vinegar and bicarb work at all?
White vinegar is roughly a 4-5% acetic acid solution. That acidity dissolves alkaline grime like limescale, hard-water spots and soap scum, and it kills a fair range of everyday bacteria on non-porous surfaces.
Bicarb soda (sodium bicarbonate) is a mild alkali and a very fine abrasive. It scrubs baked-on residue without scratching most surfaces and neutralises acidic odours, which is why an open tub keeps a fridge smelling fresh.
Because one is an acid and the other a base, combining them in a bowl mostly produces carbon dioxide, water and a little sodium acetate. Fun to watch, but the fizzing salty water left behind is a weaker cleaner than either ingredient on its own. Keep them in your everyday cleaning essentials and reach for one at a time.
What does vinegar clean well?
Vinegar earns its keep on hard-water and grease problems around the home. Diluted about one part vinegar to one part water in a spray bottle covers most jobs.
- Glass and mirrors — streak-free shine, especially finished with a dry microfibre cloth.
- Kettles and coffee machines — a vinegar-and-water boil dissolves limescale, then rinse two or three times.
- Shower screens and taps — cuts soap scum and mineral spotting.
- Deodorising drains and bins — a rinse neutralises lingering smells.
For heavy fireplace or cooktop glass, though, a chemical spray struggles with baked-on carbon. That is a job for a physical cleaner like the Scandia dry glass cleaner steel-wool pad, which lifts soot without liquids or fumes.
What does bicarb clean well?
Bicarb is your gentle-scrub and odour weapon. Made into a paste with a little water, it clings to vertical surfaces and does the scrubbing for you.
- Oven and stovetop grime — paste it on, leave a few hours, then wipe.
- Sinks, baths and tiles — mild abrasion without scratching enamel.
- Burnt pots and baking trays — a paste soak loosens the worst of it.
- Fridges, bins and shoes — a dry tub absorbs odours over time.
It is also kind to plastic food containers that hold onto smells. A bicarb paste freshens sets like the Sistema Brilliance storage range without leaving a chemical residue near food. Stock a big tub with your other kitchen and dining basics so it is always within reach.
Should you mix vinegar and bicarb together?
Mostly no. In a sealed container the reaction is genuinely useful for physically dislodging a blocked drain, where the fizzing bubbles up gunk. Pour bicarb down first, chase it with vinegar, cover for ten minutes, then flush with boiling water.
Everywhere else, mixing them in a bowl to make a general spray is a waste. By the time the fizzing stops you are left with mostly salty water that cleans worse than plain vinegar or a bicarb paste would have. If you like the scrubbing action, sprinkle bicarb on the surface, then spritz vinegar on top and work it in straight away, rather than pre-mixing.
What should you NEVER clean with vinegar or bicarb?
This is where a lot of well-meaning cleaning goes wrong. Acid and abrasion both have surfaces they quietly ruin.
Keep vinegar away from
- Natural stone — marble, granite, limestone and travertine etch and dull permanently.
- Unsealed grout and stone benchtops — the acid eats into the surface over time.
- Cast iron and some aluminium — strips seasoning and can pit the metal.
- Waxed timber and many hardwood floors — dulls the finish.
- Electronics screens and rubber seals — the acid degrades coatings and perishes rubber.
Keep bicarb away from
- Aluminium cookware — reacts and leaves a dull grey film.
- Glossy or delicate surfaces — the abrasion can micro-scratch high-gloss finishes and screens.
- Anything already treated with a specialist coating — check the manufacturer's advice first.
Never combine either one with bleach or ammonia-based cleaners. Mixing bleach with acid can release harmful gases, so always clean with one product, rinse well, and ventilate the room.
A safe vinegar and bicarb cleaning routine
Work top to bottom and glass to grease, using each ingredient where it shines. Wear disposable gloves such as the Vileda Ansell WORKmates latex gloves to keep your hands out of grime and drying acid.
- Spray diluted vinegar on glass, taps and shower screens; buff dry.
- Paste bicarb onto oven, sink and bath grime; leave, then scrub and rinse.
- Deodorise the fridge and bin with an open tub of bicarb.
- Tackle a slow drain with the bicarb-then-vinegar-then-boiling-water method.
- Bag up the rubbish in sturdy Glitz 60L garbage bags and you're done.
Handle glassware like the Snapware Pyrex sets gently when washing, and always rinse food-contact items thoroughly after any vinegar or bicarb clean.
The bottom line
Vinegar handles grease, glass and limescale; bicarb handles scrubbing and odours; and together they belong down the drain, not in a spray bottle. Learn which surfaces to protect and this cheap, low-fume duo will cover the bulk of your weekly clean. For the jobs they can't touch, a purpose-made tool or gentle detergent finishes the work.
Frequently asked questions
Is it safe to mix vinegar and bicarb soda together?
It is safe (they just fizz), but usually pointless. Combined they neutralise into salty water that cleans worse than either alone. The one good use is unblocking a drain, where the bubbling physically dislodges gunk before you flush with boiling water. For general cleaning, use them separately.
Can you clean stone benchtops with vinegar?
No. Vinegar's acidity etches and permanently dulls natural stone like marble, granite, limestone and travertine, and eats into unsealed grout. Use a pH-neutral cleaner made for stone instead, and reserve vinegar for glass, taps, kettles and other hard, non-porous surfaces.
Does vinegar actually disinfect?
Vinegar kills a fair range of everyday household bacteria on hard, non-porous surfaces, thanks to its acetic acid. It is not a hospital-grade disinfectant, so for high-risk jobs like raw-meat spills use a registered disinfectant. For routine kitchen and bathroom wiping, diluted vinegar is a reasonable low-fume option.
How do I get burnt food off a baking tray with bicarb?
Sprinkle a generous layer of bicarb over the burnt tray, add just enough warm water to make a paste, and leave it for a few hours or overnight. The abrasion and soak loosen the residue so it scrubs away with a sponge. Avoid this on aluminium trays, which bicarb can discolour.
