
How to Clean a Shower Curtain with Soda Crystals
Spray it or machine-wash it: two easy ways to remove grime and mildew from a vinyl shower curtain.
Takes 15 minutes
What you’ll need
- 1–2 tbsp Soda Crystals
- 250 ml Hot water
- Container or bowl for mixing
- Trigger Spray Bottle (optional)
- Microfibre Cloth
- Rubber gloves
Method 1:
- Combine 1 tbsp of Soda Crystals with 250 ml of hot water in a container and mix well until fully dissolved.
- Pour the mixture into a Trigger Spray Bottle using a funnel.
- Shake well, then spray the solution onto the curtain and allow it to work for ten minutes.
- Rinse and wipe away any residue with a clean Microfibre Cloth.
Method 2:
- Check the care instructions on the label of your shower curtain.
- Add a couple of tablespoons of Soda Crystals to your washing machine detergent drawer.
- Machine-wash the curtain using a gentle cycle.
- Hang the curtain to dry.
To remove grime and mildew from your vinyl shower curtain.
Mildew feeds on soap and skin residue on the curtain. Removing that residue removes its food.
The science: Sodium carbonate (PubChem, NIH) →
Whilst Soda Crystals are a natural cleaning wonder, there are some things that should not be cleaned with them because of their abrasive properties (can scratch delicate surfaces).

Polished/Waxed/Lacquered Surfaces:
Due to its abrasiveness, Soda Crystals should not be used on fibreglass or polished/waxed surfaces as they may cause damage. The same applies to lacquered or varnished surfaces as Soda Crystals can damage the lacquer and leave a dull finish.

Aluminium:
Soda Crystals should not be used on aluminium products, such as aluminium pans, utensils, or window frames. This is because Soda Crystals can corrode aluminium and will discolour them.
Store Soda Crystals in a labelled airtight container in a cool and dry place, out of reach of kids and pets. Get a container with a tight seal, such as our glass jars to maximise its shelf life, but it also makes it easier to scoop out when needed for cleaning.
Whilst Soda Crystals are a very environmentally friendly and safe Natural Cleaning ingredient, it is important to bear in mind that it is still a chemical. As such the powder can still cause damage and irritation if handled incorrectly.
It is not edible, should not be inhaled, and can damage eyes (flush the exposed areas with large quantities of water). Wear gloves when cleaning with Soda Crystals as prolonged contact with the skin when used in high concentrations can also cause irritation.

B&M Pro-Tip 1:
Rinse and dry well after cleaning, and spread the curtain out after each shower. Warm, damp folds are exactly where mildew grows back. Hot or cold water? →

B&M Pro-Tip 2:
Eucalyptus or Tea Tree Essential Oil help with mildew and musty smells in the shower. Which oil for which job →
Quick questions
Can I wash a fabric curtain too?
Yes, following the care label.
How do I stop mildew coming back?
Spread the curtain out to dry after each shower.
Try this next: Mould & Mildew Cleaner →

