Soap - Lunch and Learn Presentation

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Slide 1

Why do it?

"I can do that."
"I want to know what is in my soap."
"My skin is sensitive."

Why not?

"It's dangerous."
"What chemicals?"
"Where can I get the chemicals?"

Slide 2 - What you need

A recipe

Before anything else you need a recipe. i.e. a plan. THis will inform the rest of your steps.

Are you doing a 500 Gram batch, or a 2kg batch?

Are you using hard oils, or soft? or some mix ?

https://www.thesage.com/calcs/LyeCalc.html

Protective Equipment

  • Goggles
  • Gloves
  • Apron
  • Surface covering

Equipment

  • Two pots, ideally stainless steel - NOT aluminum, the lye will eat the aluminum
  • Stainless steel spoon
  • Silicone Spatula
  • Hand mixer , Braun et el - This makes mixing an attainable chore , not arm breaking.
  • moulds
    • I use silicone muffin moulds
    • old milk or soy tetra-pak boxes
    • various containers around the house
    • Fancy icecube trays can work.
    • and you can get purpose made moulds for soap.

Key points:

  • heat resistant
  • not porous
  • not too rigid - as you need to get the soap out afterwards.

Lye

Corrisive !

Can be tough to source.

Home hardware
https://www.homehardware.ca/search?query=lye
  • 500g $8.49 /EA
  • 3kg $29.99 /EA

† Keep in mind very little Alkali is required; for a 500 ml of oil recipe, 66 grams of NaOH is required.

Can do Kajiji and Amazon.ca as well.

Places that do not carry lye:

  • Canadian Tire
  • Rona
  • Home despot

Oil

Any oil will work but different oils will change your recipe slightly.

Coconut oil is a "Hard" oil, Olive oil is a soft oil.

Water

Small amounts are required, the less you use , the sooner you soap will be cured. The more you use the more help you have getting the reagents to react with each other.

Fragrances and Additives

This stuff is optional

  • Essential oils
  • Extracts
  • Particles of stuff:
    • Charcoal
    • oatmeal
    • lavender buds
  • Milk
  • honey
  • bee's wax
  • Clay
  • apricot / almond grit
  • colourants
  • sparkles

Slide 2

Ingredients

Stong Alkalie


Doing it at home

Ingredients

- NaOH - Oils

Slide 3

properties of soal and how ingredients affect it.


Slide 4

Where to go from here

get a sample of NaOH from David:

glass jar

oils good choices

Slide 5

Advanced topics:

  • Potassium hydroxide ( KOH ) Versus Sodium Hydroxide ( NaOH )
  • Trying oil combos.
  • Glycerine soap ( Transparent Soap )

https://laney.edu/cheli-fossum/wp-content/uploads/sites/210/2012/01/13-Saponification.pdf

Bonus Slide 6 - Glycerine soap

I want to do this.

Adding alcohol to soap basically to makes it transparent.

Process:

  • Heat the soap until melted
  • Add alcohol
  • skim off sap from the top.

Bonus Slide 7 - Oil options

Hard oils versus Soft oils

https://www.lovinsoap.com/oils-chart/

My mixes, experiments and refinements : Soap

  • Coconut -> hard
  • Olive oil -> soft

What mixes is good?

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