Best Lye for Soap Making

  • By: Carl
  • Time to read: 6 min.

Lye is an important part of soap making. Without lye, there would be no soap! Lye is a caustic material that helps to break down oils and fats so that they can be turned into soap through a process called saponification, but we will get into that more later.

First, let’s take a look at the best lye for soap making.

Best Lye For Soap Making

When you are out in the market, you will get numerous options and substances that can be used for making soaps. You also need not go to market anymore when you want to buy lye for soap making.

The lye is being sold online as well and you can buy it from the comforts of your home. It will be delivered to your doorstep.

You would want to know more about the different kinds of Lye available for making the best choice. Lye is a critical ingredient of your soap-making formula and therefore you need to pick up the best variety.

We help you in this regard by offering you certain options that are worthwhile. You can consider the lyes listed below when you want to choose the right lye for soap making.

1. Red Crown Lye (Boyer Corporation)

When you want to make a good quality soap bar, the Red Crown Lye being offered by Boyer Corporation is a high-grade option. The good-quality flakes have a uniform consistency.

The lye can be used for making a large number of soap-bar batches. The good thing is that the flakes will dissolve completely with no residues. It ensures that the highest productivity is achieved and wastages are minimized. The lye is quite popular amongst the soap makers in the USA.

The product has won some awards as well. It has convenient packaging and a wide-opening mouth to ensure that the lye can be easily used. You can combine the lye with a variety of fats (plant-based), which increases the span of your product lineup. You can check the price of the Red Crown Lye and buy it here.


  • Consistency of flakes and complete dissolution.
  • A “Made in the USA” product, which ensures high quality.
  • A secure and easy-to-use packaging. The wide mouth provides for easy removal of content.
  • Works with a variety of plant-based fatty acids, as well as lard.
  • Solid packaging and quality ingredients ensure that the product has a long shelf life.

2. Potassium Hydroxide Flakes (Essential Depot)

You can easily make liquid soaps at home by using the potassium hydroxide flakes being offered by Essential Depot. The company is a reputed organization selling chemical substances.

The product will be delivered to you in very secure packaging. The ingredient potassium hydroxide on offer is of high quality and has a thick composition. It can be used for making a variety of soaps including hand soaps, dishwater soaps, and baby shampoos.

The flakes of potassium hydroxide undergo the saponification process well enough. Therefore you will not find any issues related to soap making when you use this product. You can buy and compare the soap-making flakes here.


  • Good saponification is achieved.
  • Easy and hassle-free to use.
  • Comes in convenient and sturdy packaging.
  • Can be used for waking a variety of soaps forms.
  • The product has a long shelf life as it comes in HDPE packaging. The packaging ensures that the flakes remain dry for long period.


  • While the Essential Depot offering of potassium hydroxide is good enough, you should be highly careful of the calculations and the formula so that a perfect soap is made.

3. Pure Sodium Hydroxide Lye (Essential Depot)

This pure sodium hydroxide lye from Essential Depot is another high-quality product that has been manufactured in the USA. The product comes in the form of consistent microbeads. The packaging is an HDPE container.

This food-grade lye offers you complete peace of mind when you are bothered by aspects including the technical grade of the lye.

The food-grade lye is high quality and therefore is safe for humans in all conditions. The product has also been approved by Federal Drug Administration (FDA) as a food additive.

The sodium hydroxide lye can saponify the fats and provide you with water-soluble quality soaps. The quality soap-making product can be purchased here.


  • The microbeads are uniform and consistent. They display superior qualities.
  • The product is manufactured in high-quality and approved manufacturing facilities in the USA.
  • The product is approved by the FDA.
  • The secure HDPE plastic packaging ensures a long shelf life and hassle-free use.
  • Can be used for quality soap making.
  • Easy saponification.


  • Some sort of manual intervention is required when you use the pure sodium hydroxide beads of Essential Depot for soap making. You will have to stir the solution for complete dissolution.

4. Lye Soap Bar (Grandma’s)

The high-quality lye being offered by Grandma’s has been recommended by the Mayo Clinic ‘for skin use. The product is already being sold in the form of soap. You can use it for getting at least some experience and fun related to soap making. Grandma’s pure soap can be purchased here.


  • Good for soap manufacturers and people who do not want to work with flakes or caustic solutions.
  • Free from all kinds of adjectives.
  • Can be used as a natural face cleanser and body wash.


  • The soap should be melted first before you convert it to any other form.

5. Sodium Hydroxide (FDC)

FDC is offering 99% pure sodium hydroxide. The caustic beads can be used for making detergent soaps, and for other purposes. You do not need to add any additive for making soap when you use sodium hydroxide from FDC. It can also be used for making a dishwashing liquid. FDC’s popular saponification product can be found here.


  • The product is being sold in a secure HDPE packaging that provides for long life and hassle-free use.
  • The product can be used for making pure soap bars and liquids that saponify easily with fats and oils.


  • The product is of high purity and should be handled with care. Hand and eye protection gear should be used while handling in.

Saponification Explained

The soap solution is formed after the process of saponification. The solution used for soap making is also called “Lye”.

The lye is obtained when the sodium hydroxide beads or flakes are mixed in a liquid. This mixture will again be mixed with fats and oils and the process will be called saponification.

Sodium hydroxide is the ideal chemical and substance for making soap. It is available in the form of pellets, powder, and flakes. Certain other chemicals can also be used for soap making.

These include metal hydroxides including potassium hydroxide. The latter can be the second-best option, as they are alkaline and provide for saponification reactions.

Frequently Asked Questions

What is the best lye for soap making?

The best lye for soap making would be one that is high quality and consistent. It should be easy to work with and safe for humans.

What is the difference between sodium hydroxide and potassium hydroxide?

Sodium hydroxide is more commonly used in soap making as it is more readily available. Potassium hydroxide can also be used, but it is not as common.

What are the pros and cons of using lye for soap making?

Some pros of using lye for soap making include that it is easy to work with and can be easily saponified. Some cons of using lye include that it can be dangerous if not handled correctly and can cause skin irritation.

What are some other chemicals that can be used for soap making?

Some other chemicals that can be used for soap making include metal hydroxides and potassium hydroxide.

What is saponification?

Saponification is the process of mixing sodium hydroxide with fats and oils to create soap. This mixture will then be mixed with water to create a soap solution.


Soap making can be a fun and rewarding hobby. Using the right lye is essential for creating a high-quality soap. Sodium hydroxide is the best lye for soap making as it is easy to work with and provides a high-quality product.

It is important to handle sodium hydroxide with care, as it can be dangerous if not handled correctly. Other chemicals that can be used for soap making include potassium hydroxide and metal hydroxides.

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