How to Make Cornstarch: A Simple Homemade Recipe

Cornstarch is a common household ingredient that we often use in cooking, baking, and even beauty products. It’s a versatile substance that can thicken sauces, soups, and desserts, as well as provide a silky smooth texture to personal care items. However, while most of us are familiar with cornstarch, not many know how it’s made or where it comes from. In this blog post, we will guide you through the step-by-step process of making cornstarch at home using simple ingredients. We will also discuss the origin and uses of cornstarch, as well as its nutritional value. Whether you’re a cooking enthusiast or simply curious about how things work, read on to discover the secrets behind this popular household staple.


Cornstarch is a versatile ingredient that has been used in various ways for centuries. It is a fine white powder extracted from the endosperm of corn kernels. Cornstarch is an essential ingredient in many recipes, including soups, stews, sauces, and gravies, as it acts as a thickening agent. Moreover, it is also commonly used in baking to lighten up cakes and cookies, as well as to prevent gluten formation. Besides its culinary uses, cornstarch is also popular in the beauty industry as a natural alternative to talcum powder due to its absorbent properties.

This article will provide you with a step-by-step guide on how to make cornstarch at home, along with its nutritional value, origin, and uses. By the end of this post, you will have learned everything you need to know about cornstarch, including its benefits, and how to incorporate it into your daily life.

What is Cornstarch?

Origin and Uses

Cornstarch, also known as maize starch or cornflour, is a fine white powder derived from the endosperm of corn kernels. Its origins date back to the early 19th century when it was first commercially produced in the United States. The process involved isolating the gluten-free portion of the corn kernel and grinding it into a fine powder.

Today, cornstarch has become a popular ingredient in many different industries due to its versatility and unique properties. In the food industry, it is commonly used as a thickening agent for soups, sauces, and gravies. It can also be found in baked goods such as cakes and cookies as a substitute for wheat flour.

In addition to its culinary uses, cornstarch has also found its way into beauty and personal care products. Due to its ability to absorb moisture and oil, it is often used as a natural alternative to talcum powder in body powders and dry shampoos. It can also be found in skincare products such as face masks and lotions.

Cornstarch also has several household uses. It can be used as a natural carpet cleaner, a substitute for baby powder, and even as a DIY finger paint ingredient.

Overall, the origin of cornstarch may be traced back over a century ago, but its uses and applications continue to expand and evolve. As more people discover its versatility and benefits, we can expect to see cornstarch play an even bigger role in many different facets of our lives.

Nutritional Value

Nutritional Value

Cornstarch is a popular ingredient in many recipes, but what about its nutritional value? Is it healthy or just a filler ingredient? Let’s take a closer look.

One tablespoon of cornstarch contains approximately 30 calories and 7 grams of carbohydrates. It has no protein, fat, fiber, or essential vitamins and minerals. This means that nutritionally speaking, cornstarch is not a significant source of nutrients.

However, this doesn’t mean that cornstarch can’t be part of a healthy diet. It can be used in moderation to thicken sauces, soups, and gravies without adding extra fat or calories. It can also be used as a gluten-free alternative to flour in baking.

It’s important to note that consuming too much cornstarch can have negative health effects, particularly for those with diabetes. Cornstarch is a high glycemic index food, meaning it can cause a rapid spike in blood sugar levels. Individuals with diabetes should use caution when consuming foods containing cornstarch and monitor their blood sugar levels closely.

In summary, while cornstarch may not offer much in terms of nutritional value, it can still be used as a useful ingredient in moderation. As with any food, it’s important to understand its nutritional properties and consume it in a balanced and thoughtful way.

Ingredients Needed


Cornstarch, also known as maize starch or cornflour, is a white powdery substance derived from the endosperm of corn kernels. It has a neutral flavor and is commonly used as a thickening agent in cooking and baking.

One of the key properties of cornstarch is its ability to absorb liquid and form a gel-like consistency when heated. This makes it ideal for thickening sauces, gravies, and puddings. Cornstarch is also commonly used in baking to create light and fluffy textures in cakes, cookies, and pastries.

Aside from its culinary uses, cornstarch also has practical applications outside of the kitchen. It is commonly used in beauty and personal care products such as baby powder, dry shampoo, and face masks due to its absorbent properties. Cornstarch can also be used around the house for cleaning and deodorizing purposes.

Despite its versatility, cornstarch is not suitable for everyone. Individuals with corn allergies should avoid using products that contain cornstarch. Additionally, excessive consumption of cornstarch can lead to health issues such as weight gain, elevated blood sugar levels, and digestive problems.

In conclusion, cornstarch is a versatile ingredient that has a wide range of uses in cooking, beauty, and household applications. Its ability to thicken liquids and absorb moisture make it a staple in many kitchens and bathroom cabinets alike. However, as with any ingredient, it is important to use cornstarch in moderation and be aware of any potential health risks associated with its consumption.



Water is a colorless, odorless, and tasteless substance that covers over 70% of the earth’s surface. It is an essential component for all known forms of life, making it one of the most important resources on our planet.

Properties of Water

Water has several unique properties that make it different from other liquids. Firstly, water is a polar molecule, which means it has a positive and negative end. This polarity allows water to dissolve many substances, such as salt, sugar, and acids. Additionally, water has a high surface tension, which allows it to form droplets and create waves.

Another important property of water is its ability to exist in three states: solid, liquid, and gas. Solid water, or ice, is less dense than liquid water, which is why ice floats. Liquid water is the form we are most familiar with, and it is essential for life. Finally, gaseous water, or steam, is formed when water is heated to its boiling point.

Importance of Water

Water is vital for human survival, as well as the survival of animals and plants. It plays a crucial role in regulating body temperature, transporting nutrients throughout the body, and removing waste products. Without water, humans can only survive a few days.

Water is also important for agriculture, as it is used to irrigate crops. In addition, it is used in manufacturing processes, such as the production of paper, textiles, and electronics. Furthermore, water is a source of renewable energy, as it is used to generate hydroelectric power.

Water Conservation

However, despite its abundance, water is becoming an increasingly scarce resource. Climate change, population growth, and pollution are all putting pressure on our water supply. Therefore, it is important to conserve water whenever possible.

Simple ways to conserve water include taking shorter showers, fixing leaks, and using low-flow toilets and showerheads. Additionally, reducing meat consumption can also help conserve water, as it takes a lot of water to produce meat compared to plant-based foods.

In conclusion, water is a precious resource that is essential for life. It has unique properties and is important for a variety of purposes. However, it is also under threat, and we must take steps to conserve it for future generations.

Step-by-Step Guide

Step 1: Grind the Corn Kernels

Grinding corn kernels is the first step in making cornstarch at home. It is an essential process that determines the quality and texture of the final product.

To begin, select high-quality corn kernels that are free from mold, pests, and debris. Rinse them thoroughly with water to remove any dirt or dust. Then, dry them completely using a clean kitchen towel or a paper towel.

Next, grind the corn kernels using a food processor or a grain mill. The goal is to turn the kernels into a fine powder that will be used to make the cornstarch. You may need to grind the kernels in batches, depending on the size of your equipment.

It is important to note that the grinding process can generate heat, which can affect the quality of the cornstarch. To prevent this, you can cool the kernels in the refrigerator for a few hours before grinding them.

When grinding the corn kernels, it is also important to maintain a consistent speed and pressure. If you grind too fast or apply too much pressure, the resulting powder may be coarse or uneven. On the other hand, if you grind too slowly or lightly, the powder may be too fine and powdery.

Overall, grinding corn kernels requires patience, precision, and attention to detail. By following these tips and techniques, you can ensure that your homemade cornstarch turns out perfectly every time.

Step 2: Soak the Ground Corn in Water

Step 2: Soak the Ground Corn in Water

Soaking the ground corn in water is a crucial step in making cornstarch. This process helps to separate the starch from the other components of the corn kernel and extract it for further processing.

To begin with, you should fill a large bowl with cold water and add the ground corn to it. The amount of water needed depends on the quantity of corn you are using, but generally, you should use enough water to cover the corn completely. You can also adjust the amount of water if you notice that the mixture is too thick or too thin.

Next, you need to stir the mixture well to ensure that all the corn particles are evenly soaked in the water. This will help to break down the cell walls of the corn and release the starch granules. You should continue stirring the mixture for about 5 minutes or until you notice that the water has turned opaque and milky.

After that, you need to let the mixture sit undisturbed for some time (usually 12-24 hours) to allow the heavier starch particles to settle at the bottom of the bowl. The remaining water and other impurities will float on top, making it easier to separate them from the starch later on.

Once the settling process is complete, you can carefully pour off the excess water and impurities from the top of the mixture. You should repeat this process several times until the water becomes clear, and most of the impurities have been removed.

Overall, soaking the ground corn in water is a vital step in making cornstarch. It helps to extract the starch granules from the corn and prepare them for further processing. With patience and attention to detail, you can produce high-quality cornstarch right from the comfort of your home.

Step 3: Strain the Liquid

When you have soaked the ground corn in water, it is time to strain the liquid. This process involves separating the liquid from the solid residue, which contains the starch. Straining the liquid is an essential step in making cornstarch as it separates the unwanted components from the desired starch.

To strain the liquid, you can use a cheesecloth, a fine-mesh strainer, or a nut milk bag. Place one of these tools over a large bowl and pour the liquid through it. The solids will be caught in the strainer, while the liquid will pass through and collect in the bowl below.

It’s important to note that you may need to repeat this process several times until the liquid is clear of any impurities. You can also press the solids with a spoon or spatula to extract any remaining liquid. By doing this, you’ll ensure that your cornstarch is pure and clean, without any unwanted particles.

Straining the liquid is a crucial step, but it can be time-consuming. However, it’s worth the effort as it ensures that the final product has a smooth texture and is free of any impurities. Plus, you’ll be able to use every part of the corn kernel, minimizing waste and maximizing your yield.

Overall, straining the liquid is a vital stage in making cornstarch. By removing the liquid from the solid residue, you’ll be left with pure, high-quality starch that can be used in various ways.

Step 4: Dry the Residue

When it comes to making cornstarch, drying the residue is a crucial step in the process. After soaking the ground corn in water and straining the liquid, you will be left with a residue that contains the starch. This residue needs to be dried thoroughly before moving on to the next step.

Drying the residue can be done using various methods such as air-drying, sun-drying, or oven-drying. Air-drying is the most natural method but takes the longest time. Sun-drying is faster, but weather conditions can affect the drying process. Oven-drying is the quickest method, but it requires careful monitoring to avoid burning the residue.

To oven-dry the residue, spread it out evenly on a baking sheet and place it in a preheated oven at 150-200°F. Stir the residue occasionally to promote even drying. Depending on the quantity of residue, this process can take anywhere from several hours to a full day. You will know the residue is fully dried when it crumbles easily into a fine powder.

It’s essential to ensure that the residue is completely dry before moving on to the next step, as any moisture left can cause clumping and spoilage of the final product. Once the residue is dry, you can move on to grinding it into a fine powder, which is the final step in making cornstarch.

In conclusion, drying the residue is a crucial step in making cornstarch that requires patience and attention to detail. By following the proper drying techniques, you can ensure a smooth and successful process that yields high-quality cornstarch for all your cooking and household needs.

Step 5: Grind the Dried Residue

Grinding the Dried Residue

After the residue has been dried, the next step is to grind it into a fine powder. This powder is what we commonly know as cornstarch. The grinding process is crucial because it helps to break down the dried residue into smaller particles, making it easier to sift and ensuring that the resulting cornstarch is smooth and fine.

To grind the dried residue, you can use a food processor or a high-powered blender. Simply add the dried residue to the machine and grind until it becomes a fine powder. It’s important to note that if the residue is not completely dry, it will clump together during the grinding process, resulting in unevenly ground cornstarch. Therefore, make sure that the residue is completely dry before grinding.

Another important factor to consider when grinding the dried residue is the speed and duration of the grinding process. A high-speed blender or food processor will help to create a smoother and finer powder. However, you don’t want to over-process the residue as this can cause the machine to heat up and affect the quality of your cornstarch.

Once the residue has been ground into a fine powder, you can move on to the next step of sifting the powder to remove any remaining lumps or impurities. Sifting also helps to aerate the cornstarch, making it lighter and fluffier.

In summary, grinding the dried residue is a crucial step in the process of making cornstarch. It requires a high-powered blender or food processor and careful attention to detail to ensure that the resulting cornstarch is smooth and fine. By taking the time to properly grind the dried residue, you’ll be rewarded with a high-quality cornstarch that can be used in a variety of cooking, beauty, and household applications.

Step 6: Sift the Ground Residue

Step 6: Sift the Ground Residue

After grinding the dried residue, the next step is to sift it to obtain a fine powder. This is an important step as it ensures that the cornstarch is smooth and free from any lumps or impurities.

To sift the ground residue, you will need a fine-mesh sieve or a sifter. Place the sieve over a bowl or container and pour the ground residue into it. Use a spoon or spatula to gently press the residue through the sieve. Any large pieces of residue that do not pass through can be discarded or ground again.

It’s important to note that the quality of your cornstarch will depend on how fine you are able to sift the residue. A fine powder will result in a smoother texture when used in cooking or baking.

Sifting the ground residue also helps to remove any remaining moisture, which can cause clumping. Once you have sifted all the residue, you can store the cornstarch in an airtight container in a cool, dry place for future use.

In addition to making cornstarch, sifting can also be used in other areas such as gardening, where it is used to separate soil from rocks or debris. It’s a simple yet effective technique that can save time and effort while improving the overall quality of the end product.

Overall, sifting the ground residue is a crucial step in making cornstarch that should not be overlooked. With a little patience and attention to detail, you can produce high-quality cornstarch that is perfect for use in cooking, beauty products, or household cleaning solutions.

Uses of Cornstarch

Cooking and Baking

Cooking and Baking with Cornstarch

Cornstarch is a versatile ingredient that can be used in various cooking and baking recipes. It is often used as a thickening agent, but did you know that it can also improve the texture of your dishes? Here are some ways you can use cornstarch in your cooking and baking:

Cooking with Cornstarch:

  • Soups and sauces: Cornstarch can be used to thicken soups and sauces, giving them a smoother and creamier consistency.
  • Stir-fries: Adding cornstarch to your stir-fry sauce can help coat the vegetables and meat, creating a glossy finish.
  • Fried foods: Cornstarch can be used as a coating for fried foods, resulting in a crispy and golden texture.

Baking with Cornstarch:

  • Cakes and cupcakes: Replacing part of the flour with cornstarch can result in a lighter and fluffier cake or cupcake.
  • Cookies: Cornstarch can help make cookies chewier and softer.
  • Pie fillings: Adding cornstarch to your fruit pie fillings can help thicken them and prevent them from becoming too runny.

It’s important to note that cornstarch should be mixed with a cold liquid (such as water) before adding it to hot liquids to prevent clumping. Also, be sure not to overuse cornstarch as it can result in a gummy or starchy texture.

Overall, cornstarch is a handy ingredient to have in your kitchen. Experiment with it in your cooking and baking to see how it can enhance your dishes!

Beauty and Personal Care

Cornstarch is a versatile ingredient that has uses beyond the kitchen. In fact, cornstarch can be found in many beauty and personal care products due to its absorbent properties and gentle nature. Here are some examples of beauty products that contain cornstarch:

  • Dry shampoo: Cornstarch is a key ingredient in many dry shampoos. When applied to the scalp, it helps to absorb excess oil and refresh the hair between washes. Simply sprinkle some dry shampoo onto your roots, massage it in, and brush it out.

  • Body powder: Cornstarch is also commonly used in body powders. These powders help to absorb sweat and reduce friction, making them ideal for use during hot weather or exercise. Some body powders also contain soothing ingredients like aloe vera or chamomile to help calm irritated skin.

  • Face powder: If you struggle with oily skin, a face powder containing cornstarch may be just what you need. Cornstarch helps to absorb excess oil and mattify the skin without clogging pores. Look for a loose powder that matches your skin tone for a natural-looking finish.

  • Baby powder: Cornstarch is a main ingredient in many baby powders due to its gentle nature. It can help to soothe diaper rash and keep babies feeling dry and comfortable.

When using beauty products containing cornstarch, it’s important to patch test first to ensure that you don’t have an allergic reaction. Additionally, be sure to follow the product instructions carefully to avoid overuse or misuse. With the right application, cornstarch-based beauty products can be a valuable addition to your self-care routine.

Household Uses

Cornstarch is a versatile and affordable household item that can be used for a variety of purposes beyond cooking. Here are some of the many ways you can put it to use around the house:


  • Carpet Stain Remover: Sprinkle cornstarch on carpet stains, let sit for 30 minutes, and vacuum up for a clean carpet.
  • Silver Polish: Create a paste with cornstarch and water and apply to silverware, then rinse and dry for shiny results.
  • Window Cleaner: Mix equal parts cornstarch and vinegar to create a natural window cleaner that leaves no streaks.


  • Shoe Deodorizer: Sprinkle cornstarch inside shoes to absorb moisture and eliminate odor.
  • Refrigerator Freshener: Place an open container of cornstarch in your refrigerator to absorb odors and keep it smelling fresh.
  • Pet Odor Eliminator: Sprinkle cornstarch on carpets or furniture to neutralize pet odors.

Personal Care

  • Dry Shampoo: Apply cornstarch to the roots of your hair to absorb excess oil and add volume.
  • Diaper Rash Relief: Mix cornstarch with water to create a paste and apply to diaper rash for soothing relief.
  • Body Powder: Use cornstarch as a natural alternative to talcum powder for a refreshing feel.

From cleaning to personal care, cornstarch is an incredibly useful household item that can save you time and money while also providing eco-friendly alternatives to harsh chemicals. Try out these tips and see how cornstarch can benefit your household!
As you can see, making cornstarch is a straightforward process that requires only two ingredients: corn kernels and water. Not only is it easy to make at home, but it also has a wide range of uses in cooking, baking, beauty, and household cleaning. By following the step-by-step guide outlined in this article, you can create your own homemade cornstarch that is free from additives and preservatives. Whether you are looking to thicken sauces and soups, or to improve your skin and hair care routine, cornstarch can be an excellent addition to your arsenal. Give it a try and see how versatile this simple ingredient can be!

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button