Public Recipe
Mechanic Bar Soap - Bentonite/AC diagonal line
Solid Soap · NaOH · 100 g oil load · 10% superfat · 4 views · 0 saves
DIVIDE LYE & OILS IN HALF LYE - (70g) 35 & 35 - WATER - (106g) 53 & 53 - OILS - (500g) 250 & 250 (1) 1/4 tsp AC - DARK Bottom Half (1/2tsp ppo), Medium Trace, TILT MOLD & pour - SPRAY FIRST LAYER WITH RUBBING ALCOHOL BEFORE POURING SECOND LAYER - (2a) 250g batter, divide 50g = 200g Bentonite (2b) Add 1/16 tsp AC to 50g Drip into 200g batter at 4 corners, swirl, pour at fluid trace in UPRIGHT MOLD
Soap profile
Bubbly, cleansing, condition, hardness, longevity, and cream relative to the selected soap type.
Target 18-30
Target 10-20
Target 44-69
Target 29-54
Target 25-50
Target 16-30
Fatty acid balance
Weighted from the oil phase using the current recipe percentages.
Printable formula
Mechanic Bar Soap - Bentonite/AC diagonal line
Solid Soap · NaOH
- Oil load
- 100 g
- Superfat
- 10%
- Lye
- 13.9 g
- Liquid
- 20.9 g
Ingredients
| Ingredient | Type | Percent | Weight |
|---|---|---|---|
| Coconut Oil 76 | oil | 40% | 40.0 g |
| Castor Oil | oil | 10% | 10.0 g |
| Shea Butter | oil | 20% | 20.0 g |
| Beef Tallow | oil | 30% | 30.0 g |
| Bentonite Clay | additive | 0% | 0.0 g |
| Activated Charcoal | additive | 0% | 0.0 g |
| Sugar | additive | 0% | 0.0 g |
| Coffee Grounds | additive | 0% | 0.0 g |
| Orange Peel Powder | additive | 0% | 0.0 g |
| Pumice Powder, Fine | additive | 0% | 0.0 g |
Non-oil entries are shown as percentage of oil load for maker planning.
Soap quality
- Bubbly lather
- 29
- Cleansing
- 28
- Condition
- 38
- Hardness
- 56
- Longevity
- 28
- Creamy lather
- 37
Fatty acids
- Lauric
- 20
- Myristic
- 9
- Palmitic
- 12
- Stearic
- 16
- Ricinoleic
- 9
- Oleic
- 26
- Linoleic
- 3
- Linolenic
- 0
Batch preparation checklist
- Verify formula, lye type, scale accuracy, and all ingredient labels.
- Wear eye protection, gloves, long sleeves, and prepare a ventilated lye-safe area.
- Weigh oils, additives, scent, lye, and liquid in separate clearly labeled containers.
- Confirm mold capacity, batch lot code, cure rack space, and cleanup plan.
- Record actual temperatures, substitutions, trace notes, pour time, and unmold date.
Review notes
- Base oil total: 100.0%
- Primary oils: Coconut Oil 76, Castor Oil, Shea Butter, Beef Tallow
- Estimated raw material cost: $0.00
- Coconut Oil 76 is above the recommended maximum usage range.
- Bentonite Clay is below the recommended minimum usage range.
- Activated Charcoal is below the recommended minimum usage range.
Printout generated from a public SoapPilot recipe. Recalculate and verify every formula before production; this page is not professional safety, medical, cosmetic, or legal advice.
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SoapPilot
Mechanic Bar Soap - Bentonite/AC diagonal line
Soap
Net wt. 100 g
Back label
Ingredients (INCI)
Cocos Nucifera Oil, Tallow, Butyrospermum Parkii Butter, Ricinus Communis Seed Oil, Bentonite, Charcoal Powder, Sugar, Coffee Grounds, Orange Peel Powder, Pumice Powder, Fine