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Bath Bomb Kit Instructions


Bath bombs are super easy to make and a lot of fun. Although none of the ingredients are toxic, citric acid can be irritating to the airways and cause coughing if inhaled. It is recommended to wear a mask or handle the citric acid yourself if making with children. For trouble shooting and more bath bomb making tips visit our website. www.aussiecandlesupplies.com.au

Your kit contains:

Citric Acid
Sodium Bicarbonate
Deodorised Cocoa Butter
1 x 25ml Fragrance oil
Polysorbate 80
1 x 20gm mica
1 x large stainless-steel bath bomb (76mm)
1 x small stainless-steel bath bomb (50mm)
Makes approximately 5 large bath bombs and 5 small bath bombs. (estimate only)

Equipment required:

Large mixing bowl (preferably stainless steel or glass)
Gloves (optional)
Face mask (optional)
Large spoon Baking tray lined with baking paper


1. Empty your bag of citric acid very gently and carefully into your mixing bowl. Try not to create dust as it is a bit irritating to the nasal passages.

2. Empty the bag of sodium bicarbonate on top of the citric acid. Carefully stir to combine.

3. Tip in a small amount of mica to your dry ingredients and stir to combine adding more until you reach your desired colour. Remember your bombs will come out darker.

4. Place your deodorised cocoa butter in a heat proof container and microwave for about 1 minute. Give it a stir and keep heating in small bursts until the butter is completely melted.

5. Add your polysorbate 80 to the melted cocoa butter.

6. Add your chosen bottle of fragrance to the liquid ingredients and stir to combine.

7. Pour your liquid ingredients very slowly and in very small amounts into your dry ingredients and stir quickly but gently. Pouring too much liquid in at once will activate the citric acid and make it fizz. If you are mixing using your hands wear gloves.

8. Keep adding the wet ingredients slowly and stirring constantly until all your liquid has been added.

9. Keep mixing making sure your ingredients are well combined. Squash any lumps that have formed with the bag of the spoon, or if you are wearing gloves, in between your fingers.

10. Once your ingredients have been combined, your mix should resemble very damp sand. You should be able to form a clump of mix in your hand, squeeze tightly and then drop it into your mixing bowl. It should remain together and firm.

11. Take the first of your bath bomb moulds and in one half start packing in your wet mix pushing it down slightly to compact it just a little. Keep adding more until you have a dome of mix. Place this gently to one side

12. Take you second half of the bath bomb mould and start lightly packing this one as well. Keep packing until you also a form a dome.

13. Carefully pick up the two moulds and over your bowl quickly bring the two halves together trying not to lose much mix. You should have too much mix to close the halves completely. Push the two halves together very tightly and firmly letting the excess mix drop out into your bowl. You can help this process by running you fingers around the edges of the moulds. Try to keep pushing tightly until both edges of the moulds meet.

14. Hold the mould closed tightly for about 30 seconds to a minute. Hold the bath bomb moulds in one hand and with the other use the back of the spoon to tap firmly on the top of the top mould and a couple of taps on each side.

15. Pull the top mould off very slowly so as not to gouge the newly formed ball. If the mould does not come away easily give it a few more firm taps with the spoon and use your nails under the rim of the mould to start the lifting process.

16. Very carefully turn the mould over into your other hand being careful not to squeeze and lift the other side of the mould off using your finger nails under the rim. If you cannot remove the mould set it down and leave for about 5 minutes and try again

17. Very gently and carefully place the newly formed bath bomb down onto your baking tray.

18. Repeat this process with your other moulds and sizes.

19. Place your bombs in a dry, cool area out of direct sunlight and leave for a couple of days to completely dry out. Bath bombs should be quite hard to touch when they are fully dry however may still have a little give in them.

20. Your bath bombs once dry are now ready to use in the bath.