Soap making is a rewarding craft that combines creativity with chemistry. Whether you are a beginner looking for a simple entry point or an experienced artisan refining your formulas, understanding the different types of soap recipes is essential. This guide covers six distinct soap-making methods—cold process, hot process, melt and pour, tallow/lard soap, liquid soap, and 100% coconut oil brine soap—each with a complete recipe, instructions, and purpose.
Cold process is the most common scratch-made soap method. It uses sodium hydroxide (lye) to chemically react with oils through saponification. No external heat is applied beyond the initial mixing; the chemical reaction generates its own heat.
This is a variation of Castile soap (100% olive oil). Adding a small amount of coconut oil improves lather without being overly drying.
Yield: Approximately 2 lbs (900g) of soap
Lye Concentration: 33%
| Ingredient | Weight (oz) | Weight (g) | Percentage |
|---|---|---|---|
| Olive Oil | 20 oz | 567 g | 75% |
| Coconut Oil (76°F) | 5.3 oz | 150 g | 20% |
| Castor Oil | 1.3 oz | 37 g | 5% |
| Sodium Hydroxide (Lye) | 3.4 oz | 96 g | — |
| Distilled Water | 7 oz | 198 g | — |
| Essential Oil (Optional) | 1.5 oz | 42 g | — |
Safety: Wear gloves and goggles. Mix lye into water (never water into lye) in a well-ventilated area. Allow to cool to 100–110°F (38–43°C).
Melt: Melt coconut oil (if solid) and combine with olive and castor oils. Aim for 100–110°F.
Mix: Slowly pour lye water into oils. Use an immersion blender in short bursts until reaching “trace” (pudding-like consistency).
Pour: Pour into a mold, cover, and insulate with towels for 24 hours.
Cure: Unmold, cut into bars, and cure for 4–6 weeks to allow water to evaporate and the bar to harden.
Hot process involves cooking the soap in a slow cooker after mixing. This accelerates saponification, making the soap safe to use immediately after cooling (though a short cure improves quality). The finished bars have a rustic, textured appearance.
This recipe is high in stearic acid (from shea butter) for a creamy, stable lather that protects the skin during shaving.
Yield: Approximately 1.5 lbs (680g)
| Ingredient | Weight (oz) | Weight (g) | Percentage |
|---|---|---|---|
| Beef Tallow (or Palm Oil) | 8 oz | 227 g | 50% |
| Coconut Oil | 4.8 oz | 136 g | 30% |
| Shea Butter | 3.2 oz | 91 g | 20% |
| Sodium Hydroxide (Lye) | 2.3 oz | 65 g | — |
| Distilled Water | 5.5 oz | 156 g | — |
Mix lye water and oils as in cold process.
Pour the mixture into a slow cooker set to low.
Cook for 45–60 minutes, stirring every 15 minutes. The mixture will progress through stages: gel, mashed potatoes, and finally a translucent “Vaseline-like” consistency.
Once the soap no longer produces a zap on the tongue (indicating no active lye), scoop into molds.
Allow to cool and harden. The soap can be used immediately, though a 1–2 week cure improves mildness and hardness.
Melt and pour is the easiest method for beginners or for creating artistic soaps. You purchase a pre-made soap base (glycerin, shea butter, goat milk, etc.), melt it, add fragrance and color, then pour into molds. No lye handling is required.
| Ingredient | Quantity |
|---|---|
| Clear Glycerin MP Base | 2 lbs |
| Fragrance Oil | 1 tbsp |
| Loofah Discs | As needed |
| Cosmetic Colorant | As desired |
| Rubbing Alcohol (in spray bottle) | For bubble removal |
Cut the base into small cubes. Melt in a microwave in 30-second bursts until fully liquid.
Stir in fragrance and color gently to minimize bubbles. Spray with rubbing alcohol to pop any surface bubbles.
Place a loofah disc into the bottom of a round mold.
Pour melted soap over the loofah.
Spray the top with rubbing alcohol to ensure layer adhesion. Allow to harden for 2–4 hours before unmolding.
Before vegetable oils became widely available, soap was made from rendered animal fats. These soaps produce a hard bar with a stable, creamy “lotion-like” lather that is excellent for sensitive skin.
| Ingredient | Percentage |
|---|---|
| Lard | 80% |
| Coconut Oil | 15% |
| Castor Oil | 5% |
| Superfat | 5% |
Why this works: Lard creates an exceptionally hard and mild bar, though it produces low bubbles. The coconut oil boosts lather, while castor oil adds stability and silkiness.
Liquid soap uses potassium hydroxide (KOH) instead of sodium hydroxide (NaOH). The result is a gel-like paste that is diluted with water to create liquid hand soap, body wash, or shampoo.
| Component | Details |
|---|---|
| Oils | 100% Olive Oil (pomace grade is recommended for faster trace) |
| Lye | Potassium Hydroxide (KOH) |
| Dilution Ratio | 1 part soap paste : 1.5 parts distilled water |
Combine oils and KOH lye solution, then blend to trace.
Cook (if using hot process) or allow to saponify over 24–48 hours until the paste tests neutral.
Dilute the paste with distilled water, stirring until fully dissolved.
Add preservative (if selling or for long-term storage) and fragrance.
This specialty recipe is designed for oily skin or as a heavy-duty kitchen/laundry bar. Because coconut oil produces a highly cleansing (stripping) soap, a 20% superfat is used to prevent the bar from drying out the skin.
| Ingredient | Details |
|---|---|
| Oils | 100% Coconut Oil (76°F) |
| Superfat | 20% |
| Liquid | Salt brine (dissolve 1 part sea salt into 1 part distilled water; use this as the total liquid amount) |
Note: This soap accelerates quickly. Mold immediately after reaching trace.
Proper packaging is essential for protecting your soap, preserving its quality, and creating an appealing presentation. Requirements vary depending on the soap type and whether you are selling commercially or gifting personally.
| Requirement | Details |
|---|---|
| Curing First | Cold process and hot process soap must cure for 4–6 weeks before packaging to allow excess moisture to evaporate. Packaging uncured soap traps moisture, leading to rancidity (DOS) and soft bars. |
| Breathable Wrapping | During curing, soap should be stored on curing racks with airflow. Do not seal in plastic until fully cured. |
| Final Wrapping | Once cured, wrap in wax paper, glassine paper, or shrink wrap to protect from dust, humidity, and essential oil evaporation. |
| Requirement | Details |
|---|---|
| Seal Immediately | Melt and pour soap is glycerin-rich and attracts moisture from the air (sweating). Wrap tightly in shrink wrap or plastic wrap immediately after unmolding. |
| Avoid Humidity | Store in a cool, dry place. If sweating occurs, wipe dry and re-wrap. |
| Requirement | Details |
|---|---|
| Bottles & Pumps | Use PET or HDPE plastic bottles for liquid soap. Glass is also suitable but may be slippery in wet environments. |
| Seals | Foil seals or shrink bands provide tamper-evident protection for commercial sales. |
| Labeling | Waterproof labels are essential as liquid soap is used near water. |
If selling soap, most regions require the following on the label:
| Requirement | Description |
|---|---|
| Product Identity | “Soap” or specific type (e.g., “Goat Milk Soap”) |
| Net Weight | In ounces and grams |
| Ingredients | Listed in descending order of predominance (INCI names recommended) |
| Business Information | Name and address of the manufacturer or distributor |
| Warning | “For external use only” is common practice |
| Option | Description |
|---|---|
| Naked Soap | No packaging; sold as unwrapped bars with a paper band label |
| Cardboard Boxes | Biodegradable and recyclable; ideal for retail display |
| Glassine Bags | Grease-resistant and compostable; great for farmers markets |
| Shrink Wrap Bands | Bands made from recyclable LDPE or biolefin alternatives |
| Soap Type | Packaging Need | Best Option |
|---|---|---|
| Cold Process | Cured bar protection | Glassine paper + paper band or shrink wrap |
| Hot Process | Moisture barrier | Shrink wrap or wax paper + labeled box |
| Melt & Pour | Sweat prevention | Immediate shrink wrap or plastic wrap |
| Liquid Soap | Leak-proof dispensing | PET bottle with pump + waterproof label |
| Gift / Retail | Presentation | Custom printed boxes or kraft paper boxes |
Selecting the right packaging supplier ensures your soap arrives safely and presents professionally. Quality packaging options—ranging from shrink wrap bands and glassine bags to custom printed boxes and waterproof labels—are essential for protecting your product and enhancing its appeal.
For a wide selection of soap packaging solutions, including eco-friendly materials, custom labeling, and retail-ready boxes, PackagingVista offers a comprehensive range of supplies suitable for both small-batch artisans and commercial soap makers. Whether you need breathable curing racks, tamper-evident seals, or branded gift boxes, PackagingVista provides packaging options that protect your product while maintaining its presentation quality.
| Type | Lye Type | Difficulty | Cure Time | Best For |
|---|---|---|---|---|
| Cold Process | NaOH | Intermediate | 4–6 Weeks | Customization, swirls, natural ingredients |
| Hot Process | NaOH | Intermediate | 1–3 Days (or none) | Rustic look, ready-to-use quickly, hard bars |
| Melt & Pour | None | Beginner | 1–2 Hours | Crafting, kids, gifts, intricate embeds |
| Tallow/Lard Soap | NaOH | Intermediate | 4–6 Weeks | Traditional, sensitive skin, hard bars |
| Liquid Soap | KOH | Advanced | 2–4 Weeks | Hand soap, shampoo, bulk dispensers |
| Coconut Oil Soap | NaOH | Intermediate | 4–6 Weeks | Oily skin, kitchen/laundry bars |
If you are making cold process, hot process, liquid soap, or any soap that requires handling lye (sodium hydroxide or potassium hydroxide), always run your recipe through a lye calculator (such as SoapCalc.net or Bramble Berry’s calculator) to ensure the exact ratio of lye to water to oils is correct based on the specific brands and weights of oils you are using. Lye is caustic and requires proper safety equipment including gloves, goggles, and adequate ventilation.
