How to Make Homemade Bar Soap from Scratch

Making homemade bar soap from scratch is a fun and rewarding DIY project that can be customized to your skin type and preferences. You'll need a few basic ingredients, including oils like coconut, olive, and palm, as well as lye, water, and fragrances.

Start by gathering your ingredients, which can be found at most craft stores or online. The type and amount of each ingredient will depend on the recipe you choose, but a good starting point is a combination of 25% coconut oil, 25% olive oil, and 50% palm oil.

The lye, also known as sodium hydroxide, is a crucial ingredient in soap-making, but it can be intimidating to work with. As mentioned in our guide, make sure to wear protective gear, including gloves and goggles, when handling lye.

Mixing the lye with water creates a chemical reaction that heats up the mixture, so be patient and take your time to avoid accidents. The mixture will eventually cool and thicken, at which point you can add your oils and fragrances.

For more insights, see: Pomace Olive Oil for Soap Making

First, you'll need to gather a few basic ingredients, including oils like olive and coconut, as well as lye and distilled water, which are essential for creating a stable soap base.

Choose a well-ventilated workspace to minimize exposure to lye fumes, which can be irritating to the skin and respiratory system.

Select a recipe that suits your needs, such as a gentle soap for sensitive skin or a moisturizing soap for dry skin.

Olive oil is a good choice for beginners because it's easy to work with and creates a mild, non-stripping soap.

Coconut oil, on the other hand, provides a rich, creamy lather and is often used in combination with other oils.

Before starting, make sure you have the necessary safety equipment, including goggles and gloves, to protect yourself from lye splashes.

Related reading: Dove Coconut Bar Soap

Choosing the right ingredients for your homemade bar soap is crucial for creating a soap that's both effective and gentle on the skin. The basic ingredients of soap are animal fat or vegetable oil, 100% pure lye, distilled water, and optional essential or skin-safe fragrance oils and colorants.

Worth a look: Ingredients in Dove Bar Soap

For the oil component, you can choose from a variety of options, including olive oil, coconut oil, and other plant-based oils. Traditionally, soap was made with animal fat, but plant oils are now a popular choice. Depending on your oil, the finished soap's hardness and lather will vary.

Here are some common fats and oils used in soap-making:

Soap can't be made with petroleum-based oils, so be sure to stick to oils from animal or vegetable sources.

When choosing the right ingredients for your DIY soap, it's essential to start with the basics. To make a soap with coconut and olive oils, you'll need to gather the following ingredients.

You'll need 7 ounces of coconut oil, 17 ounces of olive oil, and 2 ounces of grapeseed oil. These oils will provide a good balance of hardness and lather in your finished soap.

For the lye mixture, you'll need 78 grams of sodium hydroxide (NaOH) and 215 grams of filtered water. Make sure to use a digital scale to accurately measure these ingredients.

Here's a summary of the basic ingredients you'll need:

Choosing the right fats and oils for your soap-making project is a crucial decision. The type and amount of oil you use will affect the hardness and lather of your finished soap.

You can use a variety of oils for soap-making, including olive oil, coconut oil, and avocado oil. Traditionally, soap was made with animal fat, but plant oils are now a popular choice. Always use oils from animal or vegetable sources only, as petroleum-based oils are not suitable for soap-making.

Some oils, like coconut oil, are great for creating a soap with a good lather, but may be drying on the skin. On the other hand, olive oil is excellent for making conditioning soaps, but may not produce a lot of lather.

Here are some examples of fats and oils used in soap-making:

Remember to calculate your fat to lye ratios carefully, as the safe amount of lye depends on the type and amount of oil you use. Always use an online lye calculator to ensure your soap recipe is safe and effective.

Take a look at this: Is Lye Safe for Soap

Soap doesn't need a scent to get your skin clean. But if you'd like to add a pleasant smell, you can use essential oils or fragrance oils.

Essential oils are mostly plant-based, and you can combine them to create custom aromas. Fragrance oils are synthetic, and it's essential to look for skin-safe options.

If you choose to add a scent, consider the type of oil you're using. Essential oils have a more subtle scent that doesn't last as long, but they're a more natural choice.

Here are some options to consider:

Combine the oils and lye solution together. You don't need to wait very long for the mixture to cool down, the residual heat from the lye solution reaction can help speed the process along.

Mix the lye solution into the oil mixture gently at first, then use an immersion blender to blend them together until they become emulsified. Be careful not to spray the mixture all over.

Water is an essential ingredient in making soap, and it plays a crucial role in the saponification process. It's used to make a lye solution, which is combined with oil.

Using distilled water is recommended, as it helps to ensure a smooth and safe soap-making process. Some soap-makers may experiment with other liquids, such as tea, coffee, beer, goat's milk, or coconut milk, but these can be tricky to work with, especially for beginners.

Most of the water will have evaporated by the time the soap hardens, so don't worry about using a lot of water. If you're new to soap-making, it's best to stick with water for your first try to avoid any potential issues.

Here are some examples of liquids that can be used instead of water:

Calculating fat ratios is crucial for making soap, and it's essential to get it right to ensure your soap turns out well.

Always use an online lye calculator to calculate the amount of lye needed for your recipe, as this will depend on the type and amount of oil you use.

You can adjust the ingredients to make smaller or larger batches, but the key is to calculate the lye safely.

To make the lye solution, you'll need to mix the lye into the water in a recipient that can handle heat. This mixture will heat up and become cloudy.

You should not pour the lye into the water, but rather the other way around. This is crucial for a safe and successful soap-making process.

The recommended ratio for the lye solution is 195g of water (ideally filtered or distilled) to 80g of lye (sodium hydroxide).

Here's a summary of the steps to mix the lye solution:

After the lye mixture has cooled enough, you can pour the warm lye solution into the oil mixture. This is a critical step in the soap-making process.

The lye solution will heat up and become cloudy at first, but it will clear up and start to cool as it mixes with the oils.

The temperature of your ingredients can affect the soap-making process, but it's not as crucial as some people think. I've experimented with using cold lye solution and solid coconut oil, and while it's possible, it can be confusing.

Using warm ingredients can speed up the process and make it easier to work with. The residual heat from mixing the lye solution can warm the oils and help things move along smoothly.

If you're using coconut oil, it's a good idea to melt it before making soap. This is because coconut oil solidifies at temperatures below 76ºF/24.4ºC, and using it solid can make it harder to reach "trace", the point where the soap has reached the right consistency.

Here are the ingredients you'll need for a basic soap recipe:

Remember to use caution when working with lye solution, as it can be hazardous to your skin and eyes.

The melt-and-pour process is not soap from scratch, but rather a way to create soap by melting pre-made soap bases and molding them into the desired shape.

This method is a great option for beginners, as it doesn't require working with lye.

The cold process and hot process are both techniques for making soap from scratch, which can be a bit more challenging but rewarding.

The cold process takes longer than the hot process, but the end result is often a more refined and smooth soap.

The hot process, on the other hand, creates a more rustic-style soap that's perfect for those who want a more textured look.

Rebatching is a way to remake a bad batch of finished homemade soap, but it's a labor and time-intensive process that often results in less aesthetically pleasing soap.

Here are the four popular soapmaking methods summarized:

Making the soap is surprisingly easy, and the ingredients are simple to find. You'll need olive oil and coconut oil, which are two of the more economical oils that work well for making soap.

One of the benefits of this soap recipe is that it has a long working time, which means you'll have plenty of time to add your favorite essential oils, colorants, or exfoliants before the soap hardens.

To give you an idea of what to expect, here's a rough estimate of the working time for this soap recipe:

Keep in mind that the working time may vary depending on the temperature and the specific ingredients you're using.

If you're looking for a soap recipe with more lather and a squeaky clean feeling, you might want to consider adding more coconut oil. However, be aware that this will also reduce the working time, making it more difficult to add your favorite ingredients.

The curing time for your homemade bar soap is crucial for its quality and longevity. It's a resting period that allows the soap to improve in quality and hardness.

During the curing time, the crystalline structure of the soap changes and improves, giving it a harder and more durable texture that will last longer. This process also helps to improve the lather and overall quality of the soap.

Over time, the moisture in the soap evaporates, making it even harder and more resistant to wear and tear. Some soaps, like Castile soap, may require longer curing times to overcome their natural tendency to be softer and more prone to lather loss.

Related reading: Does Bar Soap Last Longer than Liquid

A hard bar of soap will last much longer, so it's worth waiting for the curing time to pass.

The crystalline structure of bar soaps forms over time, improving their quality and making them harder. This structure is what keeps them hard and gives them their shape.

During the curing time, the moisture in the soap evaporates, making it harder and more durable.

All bar soaps benefit from a curing time of around a month, during which the crystalline structure continues to form and the soap hardens.

You can unmold your soap after 24 hours, but if it's too soft, wait a few more hours or days before trying again.

If you're having trouble unmolding your soap, freezing it for a short time can help shrink it and make it easier to remove from the mold.

A good rule of thumb is to wait until your soap is firm enough to hold its shape, then unmold and cut it into bars.

Here's a rough guide to help you determine when your soap is ready to unmold:

Cut the soap into bars, as needed, after it has been removed from the mold.

You can use a wooden cutting set for easy, straight cutting, especially if you have a silicone-lined wooden soap mold.

For a small investment, you can get a soap making set that includes a silicone-lined wooden soap mold, and a wooden cutting set.

Set the cut soap bars aside for several weeks to dry and "cure".

On a similar theme: Bar Soap Set

Wearing safety gear is a must when making homemade bar soap. Safety goggles will protect your eyes from splashes, while rubber or latex gloves will prevent lye from coming into contact with your skin.

To prevent accidents, always work in a well-ventilated area, especially when preparing the lye. This will help prevent inhaling fumes and reduce the risk of burns.

Mixing the lye solution and soap outside or in a well-ventilated area is crucial. This will help prevent the buildup of toxic fumes and reduce the risk of accidents.

To mix the lye solution safely, pour the lye into the water, not the water into the container with the lye. This will prevent a potentially explosive reaction.

If you get some lye on your skin, rinse it off with plenty of clean, cool water. Do not use vinegar, as this can inadvertently cause a chemical reaction that gives off heat and burns your skin further.

Here are some essential safety equipment you'll need for soap-making:

Remember, always prioritize your safety when making homemade bar soap. With the right equipment and precautions, you can create beautiful, effective soap while protecting yourself from potential harm.

You can add fragrances to your soap using essential oils or fragrance oils, but keep in mind that essential oils have a more subtle scent and don't last as long as synthetic fragrances.

To customize your soap, you can also experiment with different oil types, as each type can lead to a unique finished product. By trying out varied recipes, you can get a feel for the type of soap each oil produces.

Readers also liked: Essential Oil Combinations for Soap Making

Some popular options for adding color to your soap include soap colorants, iron oxides, and micas. You can also try using clays or spices to add natural color.

Here are some ideas for exfoliants you can add to your soap:

Remember to choose soap molds that are safe for use with soap-making, such as silicone loaf pans or plastic kitchen containers. Avoid using metal molds, as they may react with the lye in the soap.

Additional reading: Bar Soap Mold

Customizing your soap recipe is a great way to experiment with different scents, textures, and cleansing properties. You can start by using a recipe as a base and then making adjustments to suit your preferences.

Using a lye calculator can help you safely align your ingredient proportions with your desired result. This is especially important when making your own recipe, as it can be easy to get the proportions wrong.

Different oils can lead to different finished products. For example, olive oil produces a milder soap, while coconut oil produces a soap with more lather.

Here are some tips to keep in mind when creating your own recipe:

Remember, it's always a good idea to start with a basic recipe and then experiment with different ingredients and proportions. This will help you understand how to safely handle the ingredients and prevent creative detours from becoming safety hazards.

Customizing the recipe is where the fun begins. You can add fragrances, colorants, exfoliants, and other ingredients to create unique soap recipes.

To customize your soap, you can use essential oils or fragrance oils for fragrance. Essential oils are a natural option, but their scent doesn't last as long as synthetic fragrances.

You can also use soap colorants, iron oxides, and/or micas to add color to your soap. Experimenting with clays and/or spices can also produce interesting color effects.

Exfoliants like sugar, salt, coffee grounds, and poppy seeds can be added to create textured soap. You can choose one or mix and match different exfoliants to create a unique experience.

A different take: Bar Soap without Fragrance

Some popular soap molds include silicone loaf pans, muffin tins, and candy molds. You can also use plastic food storage containers or recycle food packaging like milk cartons.

To ensure your soap molds don't react with the lye, avoid using metal molds. If you do use metal or wooden molds, line them with plastic wrap and/or parchment or wax paper.

Here's a list of common ingredients you can use to customize your soap:

Making homemade bar soap is a fun and rewarding experience, especially for beginners.

There are two main methods to choose from: hot process and cold process.

Hot process soap-making is quicker to use after making, as it cures more quickly than cold process soaps.

Cold process soap, on the other hand, takes around 6 weeks to completely harden, but it's more moisturizing.

If you're just starting out, cold process soap might be a better option for you.

As a beginner, it's essential to understand the basics of soap-making. There are two main methods: hot process and cold process.

Hot process soap-making uses external heat to accelerate saponification, which means it cures more quickly than cold process soap. This is a game-changer for beginners, as you can use the soap sooner.

Cold process soap-making, on the other hand, relies on the internal heat produced during saponification. This method takes longer to cure, but the end result is a more moisturizing soap.

Here's a quick comparison of the two methods:

Ultimately, the choice between hot process and cold process soap-making comes down to your personal preference and goals.

Making soap can be a fun and rewarding hobby, but it's essential to do it right. Refining used cooking oil for making soap can be a horrible, messy process.

You can't just use the same amount of lye for all oils and expect the soap to turn out the same. Unless you know which oil you are using, you can't get it right.

Typical light vegetable oils like corn oil or canola oil don't make very good soaps on their own. They're best used in smaller percentages in soaps with other oils like olive oil and coconut oil.

The saponification process, the chemical reaction which turns lye and oil into soap, is crucial. By the time you're using your soap, this process should be complete.

Using too much lye for the amount of oil can result in a soap that stings your skin. This was my experience with my first attempt at making homemade soap.

A soap that stings your skin is not a great soap, and it's best to throw it away. I learned this the hard way with my first batch of homemade soap.

To make great homemade bar soap, you need to know what lye is and where to find it. Sodium hydroxide, also known as NaOH, is the lye you'll use for bar soaps, and it's commonly found in the cleaning section of supermarkets with drain cleaners.

Look for lye containers that explicitly mention they can be used for soap making. This ensures you're getting the right type of lye for your project.

Here are some key things to keep in mind when selecting a lye for your soap making:

Making homemade bar soap is a great way to save money and customize your cleaning products to your needs. You can make a batch of soap for under $5.

One of the biggest advantages of making your own soap is that you can choose the ingredients and scents that you prefer. With a few simple recipes, you can create a variety of soap types, from gentle and moisturizing to harsh and deodorizing.

By using a soap mold, you can create bars of soap that are uniform in size and shape, making them easier to use and store. This is especially helpful if you're making soap for a family or for gift-giving.

I'm a big fan of melt + pour soap, and for good reason - it's a game-changer for those who want to make soap without the hassle of cold process soap-making.

You can use melt + pour soap as is, but it's even more fun to melt it down and add your own ingredients to create a custom soap mix.

Some things to look out for when choosing a melt + pour soap include making sure it's free of parabens, preservatives, and PEG.

If you have sensitive skin, look for SLS-free melt + pour soap, as SLS is a known skin irritant.

Added coloring can be a problem, so it's best to choose a soap without any artificial dyes.

Fragrance oils can be okay, but some people with sensitive skin may still react to their scents, so use essential oils with caution.

Some great ingredients to add to your melt + pour soap include shea butter, goat's milk, cocoa butter, and coconut oil.

Here are some ingredients to look for in your melt + pour soap:

This type of soap is even antibacterial, making it a great alternative to liquid body wash or store-bought soaps.

Here's how you can simplify your life with just a few tweaks.

Having a morning routine can make a huge difference, as we learned in the section on "Streamlining Your Day." By waking up 30 minutes earlier, you can fit in some exercise, meditation, or simply enjoy a quiet cup of coffee before the chaos begins.

Having a "one touch rule" can also help declutter your space and reduce stress. This means dealing with paperwork, mail, or other tasks as soon as you touch them, rather than putting them off until later.

Batching similar tasks together can also save you time and energy. For example, doing all your grocery shopping at once can save you from multiple trips to the store, as we discussed in the section on "Simplifying Your Chores."