Valentine Special – Bath Bomb Making


Give your partner a special Valentine’s gift this year with our Valentine’s DIY Bath Bomb Making!

You will need:

  • Large Mixing Bowl
  • Moulds to shape the bath bombs
  • Kitchen Scales
  • Bottle
  • Trigger Spray Attachment (This will attach to the Bottle and should have clean cold water inside)


  • 300g Bicarbonate of Soda
  • 100g Citric Acid
  • 10ml Fragrance or Essential Oil of your choice
  • Colour – Most food/cosmetic/soap liquid colours are fine.

Step 1 

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

Step 2 

If using liquid food or cosmetic/soap colours, 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.

Step 3 

Measure 10ml of either fragrance or essential oil into mixture. Most essential or fragrance oils will not cause the mixture to fizz, but certain citrus oils may, so if this happens, mix in quickly and thoroughly. TOP TIP: Do not leave the mixture to stand or it will slowly start to set.

Step 4

Now, a little at a time and working the mixture all the time, spray a little water on it with the Bottle and Trigger Spray Attachment. Mix continuously to avoid it fizzing-up in the bowl. PLEASE NOTE: ONLY ADD ENOUGH WATER TO HAVE THE MIXTURE START TO HOLD TOGETHER WHEN LIGHTLY SQUEEZED IN YOUR HAND.

Step 5 

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. Please Note – Be very careful when handling the mixture so it doesn’t fall out as it may not have set yet.

Step 6 

Leave to set in the remaining half for 20-30 minutes (typical). 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.

Step 7

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. TOP TIP: Wash the moulds straight after usage so they can be used again.

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