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Science & Nature

Cold Process Soap Making (FLEX - High School)

In this 4-week FLEX course, students will learn to make REAL soap using the cold process soap making method.
Kristin Olsen
36 total reviews for this teacher
Completed by 6 learners
No live meetings
Over 4 weeks
year olds
learners per class
per learner - per week

How does aFlexible Schedulecourse work?

No scheduled live video chats
Discussions via classroom forum and private messages with the teacher
Great if your learner prefers independent pacing or is uncomfortable with live video chat

Available Times

Pacific Time

Mon Sep 5

Sep 5 - Oct 1 (4 weeks)
Flexible Time

Mon Oct 3

Oct 3 - Oct 29 (4 weeks)
Flexible Time

Mon Nov 7

Nov 7 - Dec 3 (4 weeks)
Flexible Time

Mon Dec 5

Dec 5 - Dec 31 (4 weeks)
Flexible Time
Don't see a time that works for you?


Class Experience

This class is taught in English.
Students will learn safety equipment necessary for soap making.
Students will learn to read a Materials Safety Data Sheet.
Students will learn the chemical reaction between lye and oil to produce soap.
Students will learn to develop their own soap recipe.
Students will learn several techniques to make beautiful soaps.
I have been safely making soap for 11 years. 
REQUIRED Safety Equipment - laboratory goggles, old clothes & rags, shoes, long sleeved shirt, nitrile gloves or non-latex dish washing gloves that fit well. Soap is best made in the kitchen for safety reasons. Lye - Sodium Hydroxide, NaOH: This is best ordered online, it needs to be pure sodium hydroxide with no added ingredients. I use lye from Essential Depot. Fats/Oils - A variety of oils can be used to make soap that are easily found at the grocery store. Olive, Coconut, Avocado, Sunflower, Safflower, Soy, Lard, etc. I recommend visiting the grocery store and writing down the oils that are available with prices per ounce. After we have created a recipe in class during the third week, then pick up the fats/oils. Distilled Water (I have used tap water that was run through a Reverse Osmosis filter as well as charcoal filtered well water without issue) Equipment - Plastic spoon, rubber scraper, tall sided plastic bowl, tall plastic juice pitcher, soap mold (small boxes work great), freezer paper, stick blender. These should be dedicated soap making supplies and not used for food after making soap. A digital scale that measures in grams and something to use as a weigh boat such as a plastic cup. Thermometer - no glass. OPTIONAL Essential oils - Most essential oils do not remain after the saponification process takes place. The following tend to do better than others: Lavender, Eucalyptus, Folded Orange (I use Orange 10X), Rosemary, Anise, Lemongrass, Cedarwood, Peppermint, Spearmint Fragrance Oils - These are synthetic, research before use and make the decision that best fits your family. If you chose to use FO, make sure it labeled specifically for soap making. Florals are unpredictable when used in soap, and should only be used by advanced soap makers. If you're unsure about a specific FO, please ask! Natural Colorants: Poppy Seeds, Coffee Grounds, Alkanet Root, madder root, indigo, clays (pink, green, red, yellow), Activated Charcoal, Turmeric and other spices... there are many more, but this is a good example. Decorations: Coarse Pink Salt, dried flowers, molds to make small decorations out of soap. Lab Made "Natural" Colorants: Mica, Pigment, Oxide (I use Oxides) Students should also have a camera (phone, tablet, digital camera, etc) available to record their cutting video to post to the classroom!
In addition to the Outschool classroom, this class uses:
Students should use their first name and last initial in the Kahoot! for learning assessment.  Learners who have not successfully completed the Kahoot! should not proceed into making soaps. 
No live meetings, and an estimated 1 - 2 hours per week outside of class.
This class uses Sodium Hydroxide, aka, Lye.  Sodium Hydroxide is a strong base, and can be dangerous of used improperly.  Sodium Hydroxide is required to make REAL soap.  Parental supervision during the soap making process is required.  I will contact parents of any learner who does not do well on the Kahoot! to ensure understanding of critical safety requirements for this class.
Students will use the soap calculator, to determine how much lye is needed for their selected oils.


Kristin Olsen
Lives in the United States
36 total reviews
78 completed classes

About Me

Hello!  My name is Kristin.  I was a licensed Teacher in Oregon prior to having children (ages 6-11) and focusing on their education.  I earned a Masters of Arts in Teaching degree from Western Oregon University in Middle and Secondary Education... 
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