Handmade Soap from Scratch
Transform simple oils and lye into luxurious, custom bars of soap. Learn the essential safety rules and the 'cold process' method to create your first batch with confidence.
Like Duolingo, but for Handmade Soap from Scratch. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 11 levels across 2 sections, about 22 minutes end to end, roughly 4 days at five minutes a day. It moves through The First Batch and Customizing and Finishing. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Handmade Soap from Scratch
- Lye is caustic and can cause chemical burns if it touches skin
- Adding water to a bowl of lye can cause a sudden, violent heat reaction (the 'volcano')
- Safe handling practices like ventilation and proper gear make home soap making manageable
- Pouring lye crystals slowly into water allows the heat to dissipate safely
- Respecting the chemical's properties prevents accidents without requiring a lab setting
- The 'Snow on the Lake' rule: the lye (snow) goes into the water (lake)
- The mindset required for handling lye safely in soap making
- The correct procedure for mixing the lye solution to avoid a 'volcano'
- Eye protection is the most critical gear to prevent permanent damage from splashes
- Gloves protect hands from caustic lye and raw soap batter
- Long sleeves provide a barrier for the arms against accidental drips
- Lye 'eats' aluminum, creating a dangerous chemical reaction and ruining the pot
- Stainless steel (grade 18/0 or 18/10) is the gold standard for soap pots
- Heat-resistant plastics (like HDPE 2) are necessary because the lye-water mix gets very hot
- Identifying mandatory safety gear for a soap making session
- Selecting safe vs. dangerous container materials for lye
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Handmade Soap from Scratch the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What is the main risk of pouring a cup of water directly into a bowl of lye crystals?
Get it right to open this lesson and 10 more in the app.
Where Handmade Soap from Scratch takes you
- 1
The First Batch
- Safety and the Lye Rule
- The Cold Process Method
- 2
Customizing and Finishing
- Designing Your Recipe
- Curing and Quality Control
2 sections · 4 units · 11 levels. Built to play, not to enroll.
You pick the voice
Handmade Soap from Scratch is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Arts on Tomo
Crochet Basics and Pattern Reading
Turn balls of yarn into real projects by mastering the essential stitches and learning to read pattern recipes. Build hand control, decode crochet shorthand, and finish clean, straight-edged pieces.
Crochet from the First Loop
Learn the mechanics of crochet stitch by stitch. Master hand tension, identify stitch anatomy, and troubleshoot curling edges before you build your first project.
Crochet Stitch by Stitch
Pick up a hook and turn a skein of yarn into neat, flat fabric. Learn how to hold tension, work single crochet rows, keep edges straight, and finish your first piece cleanly.
Wood Turning: The First Spin
Transform a raw block of wood into a polished object. Learn the essential physics of the lathe and the 'ABC' of tool control to start turning safely and confidently.
Drawing Your Own House Plans
Learn to translate your dream home ideas into clear, accurate, and buildable floor plans. Master spatial flow, standard drafting symbols, and essential codes from first sketch to finished sheet.
Crochet: First Loops to Fabric
Pick up a hook and turn a skein of yarn into smooth, even fabric. Learn to control tension, master core stitches, keep your edges straight, and crochet both flat rows and clean circles.
Start Handmade Soap from Scratch today.
Download Tomo, search Handmade Soap from Scratch, and play your first lesson in under a minute.