how to make cornstarch chunks

How to Make Cornstarch Chunks? Fun & Easy Science Experiment

It takes just a few simple materials to make cornstarch chunks. You can easily make this ready to go. Hence, as implied by the name, the primary component of these chunks is cornstarch. These chunks can be arranged into clear cubes or strange forms. Depending on your preferences can use them in playing activities and to eat too! Some want to season, color, and sweeten them. There are numerous alternatives. They can even be kept in the refrigerator for months.  They are usually used to make gravies and sauces thicker. How to make cornstarch chunks? Let’s find out in this article.

What are Cornstarch Chunks?

Cornstarch chunks are chunks made with cornstarch. They are made into various shapes with various flavors. They can be formed into delicious cubes or large, medium, or small chunks with random shapes.

It’s possible to find them spiced, seasoned, sweetened, or colored. They appear basic yet are a brand-new type of modern food art.

Also, these cornstarch chunks can be used in fun activities. Kids use these when they play including in sensory play and slime-making. Following are some examples of using cornstarch chunks in creative projects or playtime with children:

  • Oobleck recipe and frozen oobleck
  • Can make paint by using cornstarch
  • Shaving foam and cornstarch fluffy slime activities

Are Cornstarch Chunks Edible?

Sure, eating cornstarch in balance is safe. Nonetheless, it is never advisable to eat raw cornstarch.

The majority of cornstarch recipes ask for a couple of tablespoons which are cooked in the oven or on the stove.

Mix a tiny amount of cornstarch with lukewarm water to make a pulp that can be used to thicken sauces, soups, and stews.

Watch it perform its wonders after blending it into your recipe.  When adding sugar to the fruit mixture, whisk the cornstarch into the sugar to give your preferred consistency. Vegan baked products can also use cornstarch in place of eggs.

How Do you Make Cornstarch Chunks?

Following is the step-by-step guide to making cornstarch chunks for cooking and baking activities.


  • 1 cup cornstarch/cornstarch
  • 5 cups of water 

Cooking Methods:

  1. Turn on the oven to 93 °C (preheat).
  2. Cornstarch and water should be combined in a bowl until smooth paste forms. You can add food coloring if preferred.
  3. Pour the batter onto an oiled sheet or a baking sheet that has been prepared with a silicone mat or parchment paper.
  4. Spread the mixture thinly—no more than a quarter of an inch—across the sheet using a spatula or knife.
  5. Bake the mixture on the baking sheet for two to three hours or until it has perfectly dry and firm.
  6. By lightly rubbing it on the surface, you can determine whether it’s ready.
  7. It is prepared if it is hard and dry.
  8. Use your hand or suitable equipment cut them into manageable chunks once it has cooled.

In play activities, the most commonly used recipe is the oobleck recipe.


  • Cornstarch and water


  1. Add one and a half to two cups of cornstarch for each cup of lukewarm water.
  2. Use food coloring to make it colorful.

When making slime you have to put shaving foam into this mixture.

How to Use Cornstarch Chunks in Sensory Play and Slime-making?

Cornstarch chunks provide kids extra fun compared to toys. They enjoy making slimes with them and playing while pouring, scooping, squeezing, scraping, picking up, and running through their fingers. Also, they will be creative and use items such as flower petals, dried leaves, and others they prefer to decorate them.

Therefore, cornstarch chunks are best to use for them to improve their skills and abilities in innovative ideas.

Here is the Recipe for Making Cornstarch Slime:

Put some cornstarch in a bowl and sprinkle shaving foam over it to generate fluffy slime. Then combine it with optional food coloring. If it’s too mushy, gradually add more cornstarch; if it’s too crumbly and dry, gradually add extra shaving foam. Then cut into chunks and enjoy! Also, you can add them with pre-made slime and use them to play with it.

Additionally, you can also make colorings from cornstarch. Kids prefer to paint their pictures with watercolors. So, it will be easy to use cornstarch for that. Instead of forming chunks, you have to solvent cornstarch by adding extra water.

You can store these chunks in the freezer. Put them in the air-tight wrappers and seal them. Then put it in the freezer. So, you can use them again to play and have fun.

Is It OK to Eat Cornstarch Raw?

No, it is not. Although you can consume a little amount, it is not recommended to eat them raw in large amounts. This may cause indigestion and diseases in your stomach and in your digestive tract. Therefore, unless it is cooked or baked it is not OK to ear cornstarch raw.

Is It OK to Eat Cornstarch Raw

What Does Eating Cornstarch Taste Like?

Despite being made from maize, cornstarch doesn’t have a strong flavor. It is just like other neutral starches like bread starch. Most of the taste is lost during the processing of the removal of the kernel.

The taste of cornstarch is generally neither sweet nor bitter. Although cornstarch is fantastic for baking and cooking, we don’t advise consuming big amounts of it because it might cause blood sugar levels to rise.

Cornstarch is frequently used to thicken gravy, stews, and soups. Moreover, it is excellent for producing puddings, and cheesecake may contain it.

What Happens When you Mix Cornstarch and Hot Water?

Several glucose molecules, particularly amylopectin and amylose, make up cornstarch.

The glucose molecules are released into the water when the cornstarch is mixed with hot water, causing the starch granules to expand and burst. Due to this process, the mixture will get a bit sweet in taste.

The hot mixture of water and cornstarch will thicken and become more rigid as it cools.

Therefore, mixing cornstarch with hot water is not a good idea in making slimes and chunks with cornstarch. Keep in mind to use lukewarm water or cool water when making cornstarch chunks.

Watch this one,

Video Credits – Shaniqua Webb

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