Where does corn starch come from?

In the brief guide, we are going to answer the question ‘where does corn starch come from’ with a detailed analysis of what safety measures  are to keep in mind when using it in our daily routine.

Where does corn starch come from?

Cornstarch comes from the white endosperms found in the center of a corn kernel. These endosperms are ground into a fine, white powder that is widely used as a thickener.

How to use corn starch?

Cornstarch is highly valued for its thickening abilities. It is made up of long chains of starch molecules that unravel and swell when heated in the presence of moisture. The thickening is caused by this swelling action, also known as gelatinization.

Cornstarch can also be used to coat the fruit in pies, tarts, and other desserts before baking. As it bakes, the thin layer of cornstarch combines with the fruit juices and thickens. This keeps pies and other desserts from becoming watery or runny.

Cornstarch can be used to prevent caking. Shredded cheese is frequently dusted with cornstarch to keep it from clumping in the package. The cornstarch will also help absorb moisture from condensation and prevent the formation of a slimy texture. For the same purpose, a small amount of cornstarch is frequently combined with powdered sugar.

What is the best way to cook with corn starch?

Cornstarch should not be added directly to a hot liquid as this can cause lumps. Instead, make a slurry of cornstarch and a room temperature or slightly cool liquid, then stir it into the hot liquid. This will ensure that the cornstarch molecules are distributed evenly before they swell and gelatinize.

Cornstarch-containing mixtures should be brought to a full boil before cooling. The mixture may appear thickened after a brief heating, but if the starch molecules are not fully gelatinized, they will release moisture and become thin when cooled.

Sauces and other cornstarch-thickened mixtures should not be frozen. The gelatinized starch matrix will be broken down by freezing, and the mixture will become thin after thawing.

Does cornstarch go bad?

Cornstarch, like another corn-derived product, corn syrup, has an indefinite shelf life. Unless bugs or moisture get into the container, the powder will not spoil.

What are the cornstarch substitutes?

As a cornstarch substitute, you can use a variety of ingredients. Flour is a good all-purpose substitute for sauces; simply use twice the amount. Arrowroot and potato starch are both suitable substitutes, though the latter requires more whisking to avoid clumping. 

Tapioca starch (or flour) is a great substitute for cornstarch; use 2 tablespoons for 1 tablespoon of cornstarch. Another option is rice flour, which requires 3 tablespoons for every tablespoon of cornstarch.

Where can I get corn starch?

In the baking aisle of any grocery store or supermarket, at least one type of cornstarch should be available. A typical 16-ounce container costs only a couple of dollars. 

Although bulk quantities are available, most home cooks will only use a tablespoon or two for recipes, so bulk quantities are unnecessary. Cornstarch made from non-GMO corn can also be found and will be clearly labeled; organic cornstarch is automatically a non-GMO product.

If you’re on a gluten-free diet, read the labels carefully. To avoid cross-contamination, make sure your cornstarch was not manufactured in a facility that also processes wheat products.

Recipe of corn starch


  • Milk
  • Cornstarch
  • Vanilla extract
  • Sugar 
  • salt


Collect all of the ingredients.

Warm milk and combine the cornstarch, sugar, and salt in a small bowl.

Combine the sugar, cornstarch, and salt in a mixing bowl.

Add the remaining 1/3 cup milk and mix well.

Stir in the remaining milk, cornstarch, and salt.

Add to the scalded milk and cook, stirring constantly, over low heat until thickened and smooth.

Pour milk into the pudding base.

Cook for another 5 minutes to thoroughly cook the cornstarch.

Continue to cook the pudding.

Allow to cool slightly before stirring in the vanilla extract.

Allow to cool slightly before adding the vanilla extract.

Place in serving dishes.

How should corn starch be stored?

Because cornstarch is designed to absorb moisture, it must be stored in an airtight container that is not exposed to ambient humidity. Keep it away from high temperatures. A cool, dry location, such as a pantry, is ideal. Cornstarch can be stored indefinitely if properly stored.

Other FAQs about Cornstarch that you may be interested in.

Where can you buy cornstarch?

Where is cornstarch in the grocery store?

Can you eat cornstarch?


In the brief guide, we discussed answering the question ‘where does corn starch come from’ with a detailed analysis of what safety measures  are to keep in mind when using it in our daily routine.





Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.