Using Single Cavity Moulds

Details

This tutorial and graphics shown were originally compiled for Creative Moulds, which are no longer available.  The same instructions are suitable for any single cavity moulds that do not sit evenly on a bench top.



The range of single cavity moulds come in a range of profiles, some of which are rounded, and these need to be settled in a stable position before pouring soap into them. See below for info on how to do this. The Rectangle shaped Moulds sit firmly on a flat surface.

This soft half round designs in the small size also suits Massage Melts and can have exfoliants included in the mixture. They have a “soft dome” profile, which means they are not a complete half sphere, but a half round.

If you wish to make a full rounded sphere shape Bath Bomb you will need two moulds and then cut away the bevelled edges (if your design has this edge) so that you can press the two halves firmly together.   Our Bath Bomb Mould Packs can be used for semi spherical soap too!

Small Sizes = 40 - 50g
Large Sizes = 90 - 100g

Tips for Bubble Bars, Bath Bombs and Foaming Bath Bombs

If you have never made Bubble Bars, you’ll find a sample recipe in our Recipe Formulary listed in the Bath Products section, or alternatively we supply another when you purchase SLSA, or more are in our Bubble, Bubble, Toil and Confusion Booklet which can be found listed on our Books Pages.

For Bubble Bars:

  • We recommend washing the moulds before the first use

  • A light spray with a cooking spray will help unmoulding Bubble Bars

  • Hold the mould in one hand, and spoon in a tablespoon of Bubble Bar mixture

  • Firmly press the mixture in, add more if needed and then level it off


Unmoulding Bubble Bars
: Allow to harden for a half hour or so, and then using the end of a flexible, plastic spatula or scraper, begin to ease the Bubble Bar out. A sharp “tap” on the bench will allow the Bubble Bar to release and pop out onto the benchtop


For Bath Bombs and Foaming Bath Bombs:

 

  • We recommend washing the moulds before the first use

  • Do not spray with anything at all - it isn't needed for Bath Bombs and may activate them

  • Hold the mould in one hand, and spoon in a tablespoon of the mixture

  • Firmly press the mixture in, top off, press in firmly again and level it off

Unmoulding Bath Bombs: After REALLY FIRMLY PRESSING the near dry mixture into the mould, only wait a couple of minutes before unmoulding. Hold the mould with finger and thumb on each corner on the side nearest to you, and give a firm/sharp “tap” on the bench on the opposite edge of the mould. This will allow the Bath Bomb to carefully drop out benchtop

 

  • For a little Bling, sprinkle in a small amount of Rainbow Glitter or dust with coloured Mica before pressing in the Bath Bomb or Bubble Bar.  This really looks attractive on the unmoulded bars

  • You can also Layer two or three different colours. The beauty of hand packing the moulds is that you can have a horizontal layered bar, or even funky slanting stripey rainbow bar in abstract patterns

Note: It is is the Cocoa Butter in the Bubble Bar that allows them to harden up nicely, if you substitute Shea or Mango Butter, the Bars may not unmould as easily.


Tips for Soaps

 

Rest the Mould into a jug to level it

Rest the soft dome moulds into a jug or cup to level and stablise the mould ready for pouring (The starfish Log Mould requires a small lunchbox shaped container or a tray with some rice in to make a bed to nestle the mould into.

Cold or Hot Processed Soap (CP and HP):

 

  • Use a coffee mug, small bowl or jug to rest the mould in so that it is level and stable and ready to pour in the soap

  • If possible, bring Cold Processed Soap to gel by insulating really well, this makes unmoulding easier

  • Run a flexible, thin plastic spatula to allow some air around the mould and if your recipe is nice and hard the soap should unmould quite easily

  • If you experience any problems, use the freezer. You can leave the soaps in there for 1/2 an hour or more, then allow them to begin to return to room temperature, run a spatula around and then unmould. This makes it a breeze to unmould and CP is unaffected by the temperature change. Even if frozen solid, CP is robust enough to be unharmed, it will just defrost :)

Melt & Pour Soap (MP):

 

  • Use a coffee mug, small bowl or jug to rest the mould in so that it is level and stable ready to pour in the soap

  • Pour, allow to set completely - no fridge!

  • Run a flexible, thin plastic spatula to allow some air around the mould and the soap unmoulds quite easily