How to Make Water Bottle Cleaning Tablets With Ingredients You Have at Home

Why buy packaged water bottle cleaning tablets with highly synthesised ingredients when you can easily made your own!   These ingredients are readily available (and possibly already in your pantry), affordable, and have a lower environmental impact than synthetic chemicals.

How to make water bottle cleaning tablets with ingredients you have at home

Fizzy bottle clean tablets are actually quite similar to a fizzy bath bombs and toilet bombs!  Here we'll explain why, and how you can make your own water bottle cleaning tablets.

What is a water bottle cleaning tablet?

Designed to easily pop into a bottle and fizz away to clean your reusable water bottle with minimum scrubbing from you!  When dropped into water, certain effervescent ingredients create a fizzy reaction that helps to loosen and remove dirt and bacteria from the bottle's interior.  

They often also include a surfactant (detergent) that helps to strip oils, and hydrogen peroxide or sodium percarbonate to disinfect and sanitise.

Are bottle cleaning tablets eco friendly?

It depends on the source and safety of the ingredients, the packaging, and whether it is 'overkill' for the purpose.

Bottle cleaning tablets are yet another often plastic packaged product that contains a lot of of synthetic chemicals. Even though these industrial chemicals are said to be plant-derived or mineral based, they usually use some petrochemicals in the process and are shipped around the world.

Instead, just like with hand washing, all you need is good old fashioned soap, hot water, and scrubbing with a brush to remove most bacteria. 

For something more sanitising, you can simply use white vinegar, bicarb soda, even lemon juice, and a little oxygen bleach (sodium percarbonate).   

What are bottle cleaning tablets made from?

As we love to do at Biome, let's first deep dive into the ingredients in commercial bottle cleaning tablets, whether Bright or other brands, they are essentially the same.

Most brands will tell you what they do not contain, but they are not so upfront about what they do contain!

Sodium Percarbonate 10% - 35%
This is good old Oxygen Bleach that we love at Biome!  Unlike Chlorine bleach, Sodium Percarbonate turns into oxygen rather than chlorine.
Sodium Carbonate 10% - 30%
Good old bicarb soda that is a staple in an eco-friendly cleaning pantry.
Tartaric Acid 10% - 30%       
Commonly known as Cream of Tartar is very similar to Citric Acid.
Sodium Lauryl Glutamate
A synthetic surfactant usually made from palm oil or coconut oil.
Carboxymethyl Cellulose Sodium 1% - 5%   Cellulose thickener that binds everything into a tablet
Tetraacetylethylenediamine 2% - 10%    
A bleach activator in detergents made from fatty acids like coconut oil, and possibly palm oil
Sodium Chloride 5% - 15%             
PEG600 1% - 5%
Can be made of either sugar cane or petrochemicals - hard to know which.

How to make a water bottle cleaning tablet

Our DIY homemade recipe uses ingredients that have many other uses in your eco friendly home cleaning and laundry.



  1. Combine and mix the bicarb soda with the oxygen bleach first.
  2. Add the castile soap gradually. A teaspoon at a time pressing down any clumps.
  3. Add the citric acid last and combine well. You should reach the consistency of damp clumpy sand.
  4. Press the mixture firmly into an ice cube tray. 
  5. Leave the tablets to dry for 12 hours. Carefully remove from the tray and leave to dry for a further 12 hours. 
  6. Store them in an airtight container.  Airtight is important, because any moisture in the air will start to activate the fizzing!

To use your homemade water bottle cleaning tablet, drop one tablet into your water bottle, fill it with water, agitate a little (with the lid off) and let it sit for 15-30 minutes.

Please note that sodium percarbonate creates a lot of oxygen, so do not screw on the lid or your bottle may explode.

With a brush to clean bottles, scrub inside and then rinse thoroughly with water.

 Voila, you have saved unnecessary chemical manufacturing and packaging by simplifying and making your own bottle cleaning tablets.



Make Your Own Toilet Cleaning Bombs

Water Bottle Cleaning


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