
The Cleaning Magic of Soda Crystals

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If you’ve been following me for a while, you’ll know that I love simple, eco-friendly swaps that make cleaning cheaper, easier and kinder to our environment, and one of my absolute favourites are soda crystals. They might not look like much, but they pack a serious punch when it comes to cutting through grease, tackling stains, unblocking drains and even softening laundry. Let’s take a closer look at this fab product…
What Are Soda Crystals?
Soda crystals, also known as washing soda, are a form of sodium carbonate. They’re a strong alkali that helps to dissolve grease and break down fatty deposits, which makes them perfect for so many household jobs. They’re not to be confused with baking soda or bicarbonate of soda, which is gentler. Soda crystals are stronger and more effective for heavy-duty tasks.
They’re also inexpensive, fragrance-free, and biodegradable, which makes them a win-win for both your wallet and the planet.
How I Use Soda Crystals in the Home
In the kitchen – A quick soak of burnt pans or oven trays in hot water and soda crystals saves so much scrubbing. A simple solution of soda crystals dissolved in water will wipe away the worst of any kitchen related grime, such as on the greasy cooker hoods, tiles and sinks.
In the bathroom – soda crystals are fantastic on limescale and soap scum. You can scrub tiles, shower screens and even the toilet with them. If grout starts looking dingy, try making up a stronger solution and give it a good brush.
In the laundry – A tablespoon added alongside detergent helps to soften water and boost cleaning power. Stains like grease or tea can be tackled by soaking clothes in a soda crystal solution before washing. And if towels start feeling stiff, soaking them in soda crystals before running a normal cycle brings them back to life.
Appliance maintenance – I also rely on soda crystals for my washing machine and dishwasher. Once a month, I run an empty hot wash with soda crystals in the drum or detergent drawer. This keeps both appliances fresh, reduces limescale and removes soap residue. For sinks and drains, I pour soda crystals straight down the plughole and flush with boiling water. It’s a quick, eco-friendly way to clear greasy blockages.
Garden – I’ve not done this myself but I have been told by others that soda crystals can work wonders on patios and paving slabs to tackle moss and algae. A good scrub with them mixed in hot water can make a big difference.

Quantities Guide
- Washing machine (regular boost) – Add 1 tablespoon of soda crystals with your detergent to soften water and improve cleaning.
- Washing machine (deep clean) – Once a month, pour 1 full cup of soda crystals directly into the drum and run the hottest, longest empty cycle. This dissolves limescale, shifts soap scum and keeps the machine smelling fresh.
- Dishwasher – Sprinkle 2 tablespoons into the base and run a hot, empty cycle to de-grease and freshen the machine.
- Stain soak – Dissolve ½ cup in a basin of hot water and soak stained clothes for a few hours before washing.
- Drains – Pour 1 cup of crystals into the plughole and follow with a kettle of boiling water to clear greasy blockages.
- Kitchen degrease – Mix 3 tablespoons in 1 litre of hot water, then wipe down tiles, hobs, cooker hoods or soak greasy pans.
- Burnt pans/oven trays – Sprinkle a generous layer directly onto the pan, add boiling water and leave to soak overnight.
- Bathroom cleaning – Dissolve ½ cup in 1 litre of hot water, scrub tiles, grout or toilets, then rinse thoroughly.
- Outdoor patios/paths – Scatter crystals over moss or algae, pour on hot water and scrub with a stiff brush.

Safety and Things to Remember
Because soda crystals are alkaline, they can irritate sensitive skin, so it is recommended to wear gloves when handling them. They’re not suitable for aluminium, as they can cause damage, and I’d also avoid using them on delicate or lacquered finishes. If in doubt, test a small patch first. Also, always follow the brand’s guidelines.
Top Tip: I store mine in a sealed container, as soda crystals can absorb moisture and clump up if left open.
Why I Recommend Them
The beauty of soda crystals is how versatile they are. Instead of needing a different cleaner for every single task, I can use this one product in the kitchen, bathroom, laundry and apparently even the garden! They save money, cut down on plastic bottles, and reduce the number of harsh chemicals in the house.
I honestly think they’re one of the most underrated cleaning staples out there. If you’re trying to simplify your cleaning routine or just want an affordable, eco-friendly alternative to harsh sprays and gels, soda crystals are a brilliant choice.
Ready to Try Soda Crystals?
I always keep at least one bag in the cupboard because I know how many jobs they can tackle. If you’d like to give them a go, you can grab the same brand I use here from Dri-Pak.
You may also want to check out white vinegar, bicarbonate of soda, citric acid and percarbonate of soda whilst you’re there. All of which are also eco-friendly and staples I always keep in my home.
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