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Refill Soda Crystals

Our eco-friendly Soda Crystals now come in a plastic-free refill option.

Made in the UK, these versatile crystals are perfect for cleaning, laundry, and removing tough grime. Also known as Washing Soda or Sodium Carbonate, this powerful cleaner is often found in Nancy Birtwhistle’s natural cleaning recipes and is perfect for tackling grease, stains, and limescale.

UK-made, vegan, biodegradable
Ideal for stubborn stains and laundry
Earn 2 Pear Points per £1 spent with our rewards scheme

Check out our spring cleaning blog post for natural cleaning tips and tricks.

How to use Soda Crystals

Soda Crystals can be used for a variety of cleaning tasks, including:

Grease removal (ovens, hobs, pans)
Laundry stain removal and boosting detergent
Limescale and odour removal
Pipe clearing and toilet cleaning

For surfaces: Dissolve 200g in 500ml of water, apply, and wipe.

For washing machines: Run a hot wash with 500-750g.

For blocked pipes: Pour a mug of crystals and flush with hot water.

FAQs

What are Soda Crystals?

Soda Crystals (Sodium Carbonate Decahydrate) are an effective natural cleaner that’s more alkaline than bicarbonate of soda, making them perfect for tough cleaning jobs.

How are Soda Crystals made?

They are produced via the Solvay process, involving reactions between salt, limestone, and ammonia.

Are they eco-friendly?

Yes, Soda Crystals are biodegradable, non-toxic, and leave no harmful residues.

Similar Products: Explore our other plastic-free cleaning products like Citric Acid, Bicarbonate of Soda, and Oxygen Bleach.

How to place your order

As we want our customers to be able to refill and reuse any old bottle of any shape or size, our quantity dropdown menu is designed with flexibility in mind.

Instead of restricting you to refilling 250ml, 500ml, or 1L quantities; we have 50ml, 100ml, 200ml, 300ml, 400ml, 500ml and 1L options.

By combining any of these amounts, we hope it will be easier to buy the correct amount of product for any size bottle.

FOR EXAMPLE

The popular large Ecover washing up liquid bottle is 950ml.

To refill this bottle, simply add the following quantities of product to your cart:

- 1x 50ml,

- 1x 400ml,

- 1x 500ml

If you had a 1.5L bottle, you would add the following to your cart:

- 1x 500ml,

- 1x 1L

TOPPING UP

Quite often, bottles empty at different rates, so your shampoo might be empty but your conditioner still has half left.

In this case, for the bottle that isn't fully empty, there are a couple of options. You can either use your best judgement to guess the amount you need to top up, or order a full bottle and leave a note on the cart page to refund any leftovers.

We will then weigh and refill your bottles and, for example, if we have only refilled 200ml of the 500ml ordered, we will refund the remaining 300ml.

WHATSAPP ORDERS

If you prefer to bypass the website, you can order via WhatsApp or email.

To do this, please send us a message the day before (or earlier) your usual delivery date with your order.

For example:

"Hi Dan, please can I book in for refills tomorrow? I need hand soap, fabric conditioner and rinse aid, roughly 2L of each but please refill each bottle fully. I'll leave my bottles on my doorstep, thanks!"

We will then book you in, refill your bottles and send you an email invoice for the amounts refilled.

If you have any questions, please reach out via WhatsApp or email!

Delivery Information

Delivery is charged at a flat rate of £1 per order.

We deliver to specific postcodes each day.

If you're choosing a refill option, please leave your clean containers outside in a safe place for us to refill and return to.

Please see our Refill Delivery Information page for full details.

Why Refill

Refilling instead of re-buying can cut out a huge amount of single-use plastic.

We have carefully chosen suppliers who operate on a closed-loop system.

This means that when our bulk barrels are empty, they get picked up, washed out and refilled ready for re-delivery.

This cuts out any waste and creates a circular, closed-loop system.

By refilling your containers and bottles, you are reducing your single-use plastic footprint!

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