Laundry Washing Powder

Laundry Washing Powder

🌱 An alkaline powder blend for everyday laundry cleaning and deodorising

 

Most supermarket laundry powders contain a long list of ingredients (surfactants, optical brighteners, fillers and synthetic fragrances) many of which aren’t actually there to clean your clothes. Brighteners make fabrics look whiter without removing dirt, while fragrances mask smells instead of dealing with the cause.

Years ago, I stopped trying to memorise ingredient lists and did the opposite. I stripped everything back to a handful of ingredients I understood, trusted, and had already been using elsewhere in my cleaning routine.

The result is a simple, flexible laundry powder that cleans effectively without unnecessary extras  and without locking you into rigid rules.

 

How this laundry powder works

This powder is built on alkaline cleaning, supported by oxygen-based stain lifting.

  • Alkaline ingredients break down grease, body oils and everyday grime
  • Sodium percarbonate releases oxygen when activated with warm water, helping lift stains and deodorise
  • A small amount of soap helps loosen and carry dirt away

Each ingredient has a job. Nothing is there just to look or smell nice.

 

Important use notes

This is a powdered, alkaline cleaner, so how you use it matters.

  • Warm or hot water gives the best results
  • Heat activates sodium percarbonate and improves cleaning performance
  • Avoid using on wool or delicate fabrics

For delicates, use a soap-only wash instead.

 

Tips for best results

  • If you have hard water, slightly increase washing soda, borax or bicarb
  • Essential oils are optional - add a few drops to the container if you enjoy scent
  • Pair with an acidic rinse (vinegar or citric acid) to neutralise residue and soften fabrics

Laundry works best when alkaline washing is followed by an acidic rinse.

 

What this powder doesn’t do

This powder is not designed for:

  • Wool or silk
  • Cold-only washing without dissolving first
  • Direct greywater use

Each base solution has a specific role.

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Recipe & Instructions

Ingredients

  • ½ cup (125 g) sodium percarbonate
  • 1 heaped cup (300 g) washing soda
  • ½ cup (110 g) borax
  • ½ cup (125 g) bicarbonate of soda
  • ¾ cup (90 g) coconut soap flakes

Makes

Approx. 750g laundry powder

Method

  1. Add all ingredients to a large bowl.
  2. Mix well until evenly combined, taking care not to inhale raised dust.
  3. Transfer to an airtight container and label clearly.

That’s it.

How to use it

Add directly to the detergent compartment of your washing machine.

  • Small loads: 1 tablespoon (20–30 g)
  • Large loads: 2 tablespoons (40–60 g)

You can adjust slightly depending on load size and how dirty the laundry is.

Can I use this in cold water?
It works best in warm or hot water. Sodium percarbonate needs heat to activate properly. If cold washing is unavoidable, dissolve the powder fully in hot water first before adding it to the wash.

What temperature should I use?
Warm to hot water gives the best results. Heat helps activate oxygen cleaning and improves overall hygiene.

How much should I use?
Start with 1 tablespoon for small loads and 2 tablespoons for large loads. More powder doesn’t automatically mean cleaner clothes.

Can I add essential oils?
Yes, if you enjoy scent and aren’t sensitive. Add a few drops to the powder container and mix well.

Can I use this on wool or delicates?
No. This is an alkaline powder and not suitable for animal fibres. Use a soap-only wash for delicates instead.

Should I use fabric softener?
Yes, but use an acidic rinse, not commercial softener. Vinegar or citric acid in the rinse cycle neutralises residue and leaves fabrics genuinely soft.

Is this septic or greywater safe?
This powder is suitable for septic systems when used normally. Because it is alkaline, caution is advised for greywater use.