Simple Cold Process Soap using a Milk Carton Mold

Simple Cold Process Soap using a Milk Carton Mold

Simple Cold Process Soap using a Milk Carton Mold. I decided to recreate one of the first soaps I ever made. I also used a milk carton mold like I did for a lot of my early batches.

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My blog post about this soap:

Amy Warden’s video on how to line a soap mold:
I use Amy’s method to line all of my molds. It’s super fast and easy.

Remember to always wear safety glasses and gloves when making soap. If you’re a beginner, check out these helpful videos:
Soap Queen TV – LYE SAFETY:
Amanda of Lovin’ Soap – BEGINNER SERIES:

In case you’re interested, I have an affiliate store where I’ve listed all of the soap making supplies and materials that I purchase on Amazon:
If you use those links to buy anything, it won’t cost you anything extra, but I will receive a very small percentage of the sale. Every little bit helps, though, so thank you very much if you do! 🙂

**** Video Timeline ****
00:21 – making the milk carton mold
00:46 – lining the mold (see for details)
01:10 – water & sodium hydroxide – weighing & mixing
02:00 – weighing out the oils & butters
02:52 – combining the lye & oils
03:24 – reaching a light to medium trace
03:36 – pouring the soap
04:10 – unmolding & cutting the soap
04:46 – trimming the soap into squares
05:25 – final photos

**** RECIPE ****
Sized for a quart milk carton mold (7.5″ x 2.75″ x 2.75″)

Olive Oil – 240 g (40%)
Coconut Oil – 150 g (25%)
Shea Butter – 120 g (20%)
Cocoa Butter – 60 g (10%)
Castor Oil – 30 g (5%)

Distilled Water – 183 g
Sodium Hydroxide – 82 g

I used a 6% superfat and a 31% lye solution

Lavender Essential Oil – 18 g (3% or 30 g/kg)

If you want to change the recipe, you can use a soap calculator like the one at Majestic Mountain Sage to recalculate the sodium hydroxide required for your new recipe:

*** NOTE: Amazon Links are AFFILIATE Links
Affiliate Store:

Waring 7” Quik Stik Immersion Blender –
Scale –
Silicone spoons in video –
Mixing bowl –
Small mixing bowl –
Stainless steel pitcher –
Vegetable peeler for trimming soap –
Gloves –
Eye protection –

Canon 7d Mk II –
Canon 7d (discontinued but refurbished available on Amazon)
Canon Lens for Video – Canon EF-S 18-55 STM –
Wireless Remote for Canon Cameras –
Lighting Kit –


**** MUSIC INFO ****

Music by Epidemic Sound (

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