How To Make Cornstarch Chunks

How To Make Cornstarch Chunks

Cornstarch is a versatile and commonly used thickening agent in many cooking and baking recipes. However, did you know that you can also create fun and entertaining cornstarch chunks? These chunks are a fascinating substance that behaves differently compared to regular cornstarch when you apply force to it. In this article, we will explore how you can make cornstarch chunks yourself and have hours of sensory play!

What You Will Need

To make cornstarch chunks, you will need a few simple ingredients and materials that are likely already lying around your kitchen. You will need:

1. Cornstarch: About one cup will suffice for a decent-sized batch.
2. Water: Approximately one cup.
3. Food coloring (optional): If you wish to add some vibrant colors to your cornstarch chunks.
4. Mixing bowl: A medium-sized bowl will work perfectly.
5. Spoon or whisk: To mix the cornstarch and water thoroughly.
6. Zip-lock bags or storage containers: For storing your cornstarch chunks after they are made.

The Step-by-Step Process

Now that you have gathered all the necessary ingredients and materials, let’s dive into making your own cornstarch chunks:

1. Begin by preparing your work area. It is best to lay down some newspaper or a plastic sheet to catch any mess that may occur during the process. Remember, playing with cornstarch chunks can get messy!

2. In your mixing bowl, combine one cup of cornstarch with one cup of water. Mix the two ingredients together using a spoon or whisk until you achieve a smooth consistency. If you want to add some color to your chunks, this is the stage to incorporate a few drops of food coloring into the mixture.

3. Once the mixture is well combined, you will notice that it has a gooey and slimy texture. This is the fun part! If you want to explore the characteristics of cornstarch chunks to the fullest, consider adding a bit more water to create a runnier consistency. The chunks will transform depending on the force applied.

4. Now that your cornstarch mixture is ready, it’s time to create the chunks. Scoop a spoonful of the mixture and place it on your plastic sheet or newspaper. Observe how the mixture behaves. Tap it gently to see it change into a solid, and then press it down with more force to see it ooze like a liquid. This unique behavior is due to the properties of cornstarch, which can act as both a solid and a liquid depending on the applied force.

5. Continue creating more chunks, experimenting with different shapes and sizes. You can stack them up or watch them ooze between your fingers. The possibilities are endless!

Storage and Cleanup

Once you have finished playing with your cornstarch chunks, you may want to store them for future use. Transfer the chunks into zip-lock bags or sealable containers, ensuring they are tightly closed. This will prevent them from drying out.

Cleaning up after making cornstarch chunks is relatively easy. Simply wash your mixing bowl and utensils with warm, soapy water. If any cornstarch mixture ends up on your work surface, wipe it up promptly with a damp cloth.


Making cornstarch chunks is a fantastic way to engage in a sensory activity and learn about the unique properties of cornstarch. Whether you are creating these chunks for educational purposes, entertainment, or stress relief, you are sure to have a delightful time experimenting with this peculiar substance. So gather your ingredients, set up your work area, and let your creativity flow with homemade cornstarch chunks!

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