Make Your Own Bath Bombs

Making your own bath bombs is simple.

I hate to mention the C word when its only August but….Christmas is not far away especially if you would like to make your own gifts this year. 
So, I thought I would give you a simple bath bomb recipe that you could try now and then once you have perfected the technique and decided what scent and whether to add colour, you will be ready to start your gift making.

Before you start…a little warning DO NOT try to eat the ingredients, DO NOT get any of the ingredients in your eyes, if you do make sure you rinse thoroughly immediately and seek medical advice.


1) A large mixing bowl
2) Suitable moulds to shape the bath bombs
3) Kitchen scales
4) A hand sprayer containing clean cold water (or if you havent got a suitable container you could very carefully drip the water off the ends of your fingers)


300g Bicarbonate of Soda
100g Citric Acid
10ml Fragrance
Colour – Any food colouring will be suitable


Measure out the bicarbonate of soda and the citric acid into the mixing bowl, sieving if necessary and thoroughly mix together until you have a consistent texture.


If using liquid food add, in drops, enough colour to make the shade you want, mixing it in quickly to avoid it fizzing up. If using a powdered colour, simply add, a little at a time, and mix until you have your desired shade.


Blend in the colour until you have a consistent shade throughout the mixture to avoid ‘spots’ especially important with powdered colours.


Add a few drops of essential oil into mixture. Most essential oils will not cause the mixture to fizz, but certain citrus oils may, so if this happens, mix in quickly and thoroughly.
Do not leave the mixture to stand or it will slowly start to set.


Now, a little at a time and working the mixture all the time, spray a little water on it with the hand sprayer. Mix continuously to avoid it fizzing-up in the bowl and ONLY ADD ENOUGH WATER TO HAVE THE MIXTURE START TO HOLD TOGETHER WHEN LIGHTLY SQUEEZED IN YOUR HAND.
If you are dripping the water from your fingers do this from one hand whilst mixing with the other. 


Test the mixture by squeezing some in your hand. It should JUST hold together and not be too damp.


Once this point is reached you need to work quickly to compress the mixture into your moulds.

If using our Bath Bomb moulds this mixture will make almost exactly 5 bath bombs using the 2 inch moulds. You will need 3 moulds, without clips, in halves, ready to fill.


Fill each half just proud of the surface and press together for a few moments.


Then remove one half, being careful not to let the bath bomb fall out.


Leave to set in the remaining half for 20-30 minutes (typical). You should end up with 5 bath bombs sitting in 5 half moulds with 1 half mould left, into which you can press any left-over mixture if you wish.


You could choose to use all kinds of moulds including something simple like ice-cube trays or small yougurt pots, silicone baking moulds, cup cakes etc.. If making these with children it’s often easier to use simple moulds that don’t need 2 halves.


After 20-30 minutes they should be quite hard. Simply take the bath bomb from the mould and leave it to dry. If they’ve not hardened enough, just leave them in their moulds a little longer and test again.


To extend the life of your plastic moulds, don’t leave the bath bombs in them any longer than necessary and wash the mould thoroughly immediately after use.

To keep your bath bombs in top condition, keep them in a sealed container at room temperature until you want to display them.

It is better to add small drops of water so that you do not over water them.

Bath Bomb Mould
Ice Cube Mould
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