
Creating handmade lye soap at home can be a fun and rewarding experience. It's a great way to customize the ingredients and scents to your liking.
To get started, you'll need to mix lye and water in a well-ventilated area, as the fumes can be hazardous to your health. This mixture is called lye solution, and it's a crucial component of soap making.
Lye, or sodium hydroxide, is a highly caustic substance that's essential for breaking down oils and fats into soap. It's usually sold in flakes or pellets and can be found at most hardware stores.
The type of lye you use will depend on the recipe you're following, but it's always a good idea to wear protective gear when handling it, such as gloves and goggles.
What Is Lye Soap
Lye soap was a staple at any 1880s homestead, used for cleaning yourself, your clothes, and anything else that needed a good wash.
It's also rumored to cure insect bites and poison ivy, making it a popular home remedy.
Each log of lye soap makes approximately 10 1.25" bars, and weighs around 2.75 lbs. before drying.
Some lye soap logs are handmade by Silver Dollar City resident craftsmen, and come in different scents like peppermint, eucalyptus, and pine-tar.
These scented soaps are still made in the same way as they would have been back in the 1880s, with the same basic function of cleaning and cleaning up stains from laundry.
Lye soap is a versatile product that's been used for generations, and its uses haven't changed much over time.
Making Handmade Lye Soap
Making handmade lye soap is a fun and rewarding process that can be done at home. The basic function of lye soap at any 1880s homestead was to clean yourself, your clothes, or anything else that needed a good wash.
This popular home remedy is rumored to cure insect bites and poison ivy as well as remove stains from laundry. Each log of lye soap can make approximately 10 1.25" bars.
To make lye soap, you'll need a few ingredients, including trinity blend oil, lye solution, distilled water, and fragrance oil or essential oil. Here are the ingredients and tools you need to make 4.5 lbs of soap using a 5 lb wooden box mold:
- One 5 lb wooden box mold
- 3 lbs (48 ounces) trinity blend oil
- 14 ounces 50/50 lye solution
- 7 ounces distilled water
- Optional: 2 ounces fragrance oil or essential oil
- Optional: 1 ounce kaolin clay
- Optional: 0.1 ounce (a large pinch) himalayan pink salt
- Optional: Micas, eco glitters, natural powders, or botanicals of your choice
Before you start making lye soap, make sure you have the right safety gear, including gloves, safety glasses, and a hair net if you plan to sell your soap. Put on your PPE and heat your Trinity Blend on LOW in a wax melter (80-90 degrees F) and mix gently.
To make cold process soap, follow these 10 steps:
- Put on your PPE. We recommend gloves and safety glasses at minimum. Wear long sleeve clothing or protective sleeves. If you plan to sell your soap, we suggest wearing a hair net as well for cleanliness.
- For best results, heat your Trinity Blend on LOW in a wax melter (80-90 degrees F) and mix gently.
- Weigh out all ingredients needed for a batch to begin using the measurements listed above.
- Add the Himalayan salt into your water and mix using a whisk.
- Now add your water/salt mixture to your Trinity blend and use an immersion blender to mix for approximately 1 minute.
- Pour in your 50/50 lye solution and mix using an immersion blender until mixed completely (approximately 30-60 seconds).
- When you reach a light trace, you can write your name into the batter or see the drip indentations in your batter.
- Blend using an immersion blender until thoroughly combined or soap begins to thicken to a pudding-like consistency.
- Pour into mold and add any swirls or designs to the surface of your soaps.
- Leave undisturbed for at least 24 hours then unmold and cut your bars using gloves.
Benefits and Results
Making the switch to handmade lye soap can have a significant impact on your skin and the environment. Handmade lye soap is gentler on skin than commercial soap, reducing irritation and dryness.
The natural ingredients used in handmade lye soap, such as coconut oil and olive oil, are rich in antioxidants and fatty acids that nourish and moisturize the skin. This can lead to softer, smoother skin.
Additional reading: Is Lye Soap Good for Your Skin
Handmade lye soap is also a more sustainable option than commercial soap, as it uses natural ingredients and reduces waste. By making your own soap, you can also customize the ingredients to suit your skin type.
The benefits of handmade lye soap are numerous, from improved skin health to reduced environmental impact. By making the switch, you can enjoy healthier, more sustainable soap that's tailored to your needs.
Ingredients and Supplies
To make handmade lye soap, you'll need a few key ingredients and supplies.
To start, you'll need a mold to shape your soap. A 5 lb wooden box mold is a good size for making 4.5 lbs of soap.
You'll also need a specific amount of trinity blend oil, which is 3 lbs or 48 ounces.
For the lye solution, you'll need 14 ounces of 50/50 lye solution.
Distilled water is also necessary, and you'll need 7 ounces of it. You can also use alternative ingredients like aloe vera concentrate, goat milk, or floral water.
Take a look at this: Lye Solution for Soap Making
If you want to add fragrance to your soap, you can use 2 ounces of fragrance oil or essential oil. Some popular options include fragrance oils specifically designed for cold process soap.
Other optional ingredients you can add to your soap include kaolin clay, which can help retain fragrance composition, and a small amount of himalayan pink salt, which can help make your bar harder.
Here are the basic ingredients and supplies you'll need to get started:
- 5 lb wooden box mold
- 3 lbs (48 ounces) trinity blend oil
- 14 ounces 50/50 lye solution
- 7 ounces distilled water
- Optional: fragrance oil or essential oil
- Optional: kaolin clay
- Optional: himalayan pink salt
The Soap Making Process
To make handmade lye soap, you'll need to follow a specific process. Put on your PPE, including gloves, safety glasses, and long sleeve clothing or protective sleeves, to ensure your safety during the process.
You'll also need to heat your Trinity Blend to 80-90 degrees F in a wax melter or simply shake your container of Trinity oil thoroughly before measuring it. This will help to ensure even distribution of the mixture.
The soap making process involves several steps, including weighing out all ingredients, adding the Himalayan salt to the water and mixing, and then adding the water/salt mixture to the Trinity blend and mixing using an immersion blender.
Here are the basic steps involved in making handmade lye soap:
- Put on your PPE, including gloves, safety glasses, and long sleeve clothing or protective sleeves.
- Heat your Trinity Blend to 80-90 degrees F in a wax melter or simply shake your container of Trinity oil thoroughly before measuring it.
- Weigh out all ingredients and mix the Himalayan salt with water.
- Add the water/salt mixture to the Trinity blend and mix using an immersion blender.
- Add the 50/50 lye solution and mix until the mixture is fully incorporated.
- Blend the mixture until it reaches a light trace.
- Pour the mixture into a mold and add any swirls or designs to the surface.
- Leave the soap to set for at least 24 hours before unmolding and cutting it into bars.
After 48 hours, your soap will be safe to use.
10 Steps to Make Cold Process Soap
Making cold process soap is a fun and rewarding process, but it does require some safety precautions. Put on your PPE, including gloves, safety glasses, and long sleeve clothing or protective sleeves, to protect yourself from the soap-making process.
Heating your Trinity Blend is a crucial step in making cold process soap. Heat it on LOW in a wax melter to 80-90 degrees F, or simply shake your container of Trinity oil thoroughly before measuring it to ensure even distribution of the mixture.
To begin making soap, weigh out all the ingredients you need for a batch using large heat-safe plastic, glass, or stainless steel containers. Make sure to double-check your measurements and tare your scale so you don't include the weight of your pitcher.
Add the Himalayan salt to your water and mix it using a whisk. Then, add the water/salt mixture to your Trinity blend and mix it using an immersion blender for approximately 1 minute.
Next, pour in your 50/50 lye solution and mix it using an immersion blender until it's fully incorporated. This will start to thicken the mixture, which is the beginning of the tracing process.
As you continue mixing, you'll reach a light trace, which is when the mixture is thick enough to hold its shape but still pourable. This is the perfect time to add any additives, such as kaolin clay, fragrance, or essential oil.
Blend the mixture thoroughly using an immersion blender until the additives are fully incorporated and the soap begins to thicken to a pudding-like consistency. This is when you know it's time to pour the soap into a mold.
Pour the soap into your mold and add any swirls or designs to the surface. Make sure not to wait too long, or the soap will be too thick to pour.
Leave the soap undisturbed for at least 24 hours to allow it to harden and set. After 48 hours, it will be safe to use and ready for cutting into bars.
A fresh viewpoint: What O Add to Homemade Soap as a Preservative
Prysm
Prysm is a crucial step in the soap making process. It's a technique used to create a smooth and even texture in the soap.
Prysm involves pouring the soap mixture into a mold and allowing it to set. This process can take anywhere from 24 to 48 hours, depending on the size and thickness of the soap.
The goal of prysm is to create a soap that is free of bubbles and has a uniform texture. This is achieved by allowing the soap mixture to cool and set slowly, which helps to eliminate air pockets.
A well-executed prysm can make all the difference in the quality of the final product. It's a step that requires patience, but the end result is well worth it.
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Curing Your Soap
Your soaps are safe to use after 48 hours, but they still contain additional water that will evaporate over time to create a denser, harder bar of soap.
This process can take anywhere from 2 to 6 weeks, depending on the weather. In dry, hot weather, the process happens faster, while in humid environments, it takes longer.
Using dehumidifiers can help speed up the curing process, which is often misunderstood as being the same as saponification.
Saponification is complete after 48 hours, but the curing process is simply the evaporation of excess water.
Once you have the same bar weight for 3 days in a row, your bar is fully cured and that's the weight you'll use on your packaging.
Selling and Marketing
Handmade lye soap can be sold at local craft fairs, farmers' markets, and online through platforms like Etsy.
To stand out in a crowded market, it's essential to create a unique selling proposition, such as using natural and organic ingredients.
A well-designed label is crucial for showcasing the soap's ingredients and benefits, as it helps build trust with potential customers.
The label should include a clear and concise ingredient list, including the type of lye used, to comply with labeling regulations.
Selling Cold Process
You can start selling your cold process soap before it's fully cured, but you need to label the correct product weight on your packaging.
To determine the correct weight, wait until your bar weight is the same for 3 days in a row, which indicates it's fully cured.
This means you can use the same recipe to predict the finished bar weight, even if it's still curing.
For example, if your bar initially weighs 3.5 ounces after 48 hours, it may cure to 3.2 ounces over the course of a few weeks.
You can safely label and sell your soap as a 3.2 ounce bar, even if it's currently 3.4 or 3.3 ounces.
Waiting up to 6 weeks to sell after your product has been made is not a scalable option for most soap makers.
Using this labeling tip can help you grow your business by breaking through ceilings and increasing your product availability.
Lauren's Journey from Hobby to Hustle

Turning a hobby into a business can be a daunting task, but Lauren of North + Rose shows us that it's possible to make the leap.
Lauren turned a spark of creativity into a thriving business.
It's not easy to go from a hobby to a hustle, but Lauren's story is inspiring.
She started small and focused on building a brand.
Lauren's business, North + Rose, is a great example of how to turn a passion into a career.
With hard work and determination, Lauren was able to grow her business and make it successful.
On a similar theme: Soap Making Business
Frequently Asked Questions
Is homemade lye soap good for your skin?
Made correctly, homemade lye soap is generally safe for your skin, as the saponification process consumes all lye, leaving no harsh chemicals behind. However, proper technique and safety precautions are crucial to ensure a risk-free soap-making experience
What are the disadvantages of lye soap?
Lye soap can be hazardous to use due to its corrosive nature, posing risks to skin and eyes. Handling lye soap requires caution and proper safety precautions
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