Understanding pH Levels in Natural Cleaning Products
Simple, natural cleaning for everyday wellbeing
When we go back to basics with natural cleaning, one of the most important things to understand is pH. It might sound scientific, but it’s actually very simple and once you understand it, everything starts to make sense.
What is pH (and why does it matter)?
The pH scale runs from 0 to 14:
0–6 = Acidic
7 = Neutral (water)
8–14 = Alkaline (basic)
Different types of dirt respond to different pH levels:
Acidic cleaners break down mineral build-up, limescale, and soap scum
Alkaline cleaners cut through grease, oils, and organic matter
This is why simple, natural ingredients work so well — they each have a role.
The truth about natural cleaning
There’s a common belief that natural cleaning products are always gentle or neutral, but that’s not quite right. Natural ingredients still sit across the pH scale:
Vinegar is acidic
Baking soda is alkaline
Castile soap is alkaline
So natural cleaning isn’t about “mild”, it’s about using the right ingredient for the right job. This is where confidence comes in. When you understand why something works, it becomes simple.
Your core natural cleaning ingredients (and their pH)
These are the foundations of a simple, sustainable cleaning routine:
🌿 Cleaning Grade Vinegar 9.9% (Acidic)
pH: around 2–3
Best for:
Windows and glass
Limescale and mineral build-up
Soap scum
Why it works:
Acid breaks down mineral deposits and leaves surfaces sparkling.
🌿 Cleaning Grade Baking Soda (Mild Alkaline)
pH: around 8–9
Best for:
Deodorising
Gentle scrubbing
Bathroom and kitchen surfaces
Why it works:
It lifts grease and neutralises odours while being gently abrasive.
🌿 Washing Soda Ash (Strong Alkaline)
pH: around 11
Best for:
Washing Powder
Dishwasher Powder
Breaking down heavy grease
Why it works:
A stronger alkaline that cuts through stubborn grime and softens water.
🌿 Castile Cleaning Soap (Alkaline)
pH: around 8–10
Best for:
Everyday cleaning
Floors, walls, all surfaces, dishes
Why it works:
Soap lifts and carries away dirt, grease, and bacteria.
pH: around 2–3
Best for:
Descaling dishwashers and kettles
Removing mineral build-up
Why it works:
A natural acid that breaks down calcium and residue left behind.
Why this matters in your home
When you understand pH, cleaning becomes:
✔️ Simpler – fewer products, just the right ones
✔️ More effective – using ingredients properly
✔️ More sustainable – no unnecessary chemicals
✔️ Better for your health – reducing toxic exposure
✔️ Better for the environment – biodegradable, grey-water safe
You don’t need a cupboard full of products.
You just need a few trusted ingredients and the knowledge of how to use them.
A common mistake (and what to do instead)
One of the biggest misunderstandings is mixing ingredients without knowing why. For example:
Mixing vinegar (acid) and baking soda (alkaline) creates a reaction, but it largely cancels out their cleaning power, leaving mostly water and salt.
They are powerful but should be used separately. (With some exceptions, e.g. toilet bowl cleaning and drain cleaning).
Use them intentionally:
Baking soda to scrub
Vinegar to rinse and shine
Bringing it back to basics
This way of cleaning isn’t new. It’s how homes were cared for long before supermarket shelves were filled with products we didn’t question.
Natural cleaning is:
Simple
Effective
Sustainable
Grounded in real knowledge
And most importantly, it gives you confidence. Because when you understand your ingredients,
you’re no longer relying on marketing. You’re making informed, practical choices every day.
The Problem with Many Commercial Cleaners
Many supermarket cleaning products sit at the extreme ends of the pH scale.
For example:
Oven cleaners and drain cleaners are often highly alkaline (pH 13–14)
Bleach products are strong alkaline bases (pH 11+)
These products come with strong warnings for a reason, they are corrosive and harsh.
The question is:
Do we really need that level of strength in our everyday homes?
Most of the time we don’t.
Natural cleaning is about returning to what has always worked
Vinegar for minerals
Baking soda for grease and scrubbing
Soap for everyday cleaning
Simple ingredients. Clear purpose. No confusion.
When you understand pH, you stop guessing.
You start cleaning with confidence.
A Simple Way to Start
You don’t need to change everything overnight.
Start with one simple swap:
Replace bleach with vinegar
Replace multi-surface spray with castile soap
Replace harsh scrubs with baking soda paste
Build from there.
Final Thoughts
Natural cleaning isn’t about perfection.
It’s about making better choices and building habits, one step at a time.
When you choose simple, natural, sustainable ingredients, you’re not just cleaning your home.
You’re creating a healthier space for your whānau.
You’re reducing your exposure to unnecessary chemicals.
And you’re supporting a way of living that is better for the environment.
That’s what natural cleaning for everyday wellbeing looks like.
If you’d like to learn more, explore our range of natural cleaning ingredients or join an upcoming workshop:
👉 www.yourhomenaturally.co.nz 🌿
