How To Make Corn Starch Bricks

How To Make Corn Starch Bricks

Corn starch bricks are a fantastic eco-friendly alternative to traditional construction materials. They are economical, easy to make, and have a lower environmental impact. Whether you are looking to build a small structure or engage in a larger construction project, corn starch bricks can be a sustainable and viable option. In this article, we will guide you through the step-by-step process of making corn starch bricks.

Gather the Ingredients and Tools

Before you get started, make sure you have all the necessary ingredients and tools ready. Here’s a list of what you will need:

  • 2 cups of corn starch
  • 2 cups of water
  • 1 tablespoon of vinegar
  • 1 tablespoon of glycerin
  • A large mixing bowl
  • A whisk or spoon for stirring
  • A silicone mold
  • Parchment paper

Step-by-Step Instructions

Now that you have everything prepared, let’s go through the process of making your own corn starch bricks.

Step 1: Prepare the Mixture

Start by combining the corn starch and water in the large mixing bowl. Mix them thoroughly until you achieve a smooth and lump-free consistency.

Step 2: Add Vinegar and Glycerin

Next, add the tablespoon of vinegar and glycerin to the mixture. These two ingredients help improve the durability and strength of the corn starch bricks. Stir well to ensure they are evenly distributed.

Step 3: Heat the Mixture

Transfer the mixture to a stovetop or heat-resistant container. Place it on low to medium heat and start stirring consistently. The mixture will begin to thicken as it heats up, so be sure to keep stirring to prevent any lumps from forming.

Step 4: Achieve the Desired Consistency

Continue heating and stirring the mixture until it reaches a thick, dough-like consistency. You want it to be pliable enough to mold into bricks. This process usually takes around 10-15 minutes, but keep an eye on it as cooking times may vary.

Step 5: Mold the Bricks

Once you have achieved the desired consistency, remove the mixture from the heat. Allow it to cool for a few minutes, ensuring it’s still warm but not scalding hot. While it’s cooling down, prepare your silicone mold by lining it with parchment paper for easy removal.

Take small portions of the mixture and press it firmly into the mold, making sure to remove any excess air bubbles. Smooth the surface of each brick with a spatula or your hands. If you don’t have a silicone mold, you can also shape the mixture into bricks by hand. Just make sure to compress them well to maintain their structural integrity.

Step 6: Let Them Dry

After you have molded all the bricks, set them aside in a dry and well-ventilated area to dry completely. This process may take a few days depending on the weather conditions. Flip the bricks once or twice a day to ensure even drying and prevent any possible deformities.

Step 7: Curing

After the bricks have dried, curing is an essential step to strengthen them further. Gently transfer the dried bricks to a dry and warm location where they can air cure for at least a week. This will allow them to harden and become more durable.


Making corn starch bricks is an eco-friendly and cost-effective way to contribute to sustainable construction practices. By following these simple steps, you can create your own bricks that are not only strong but also better for the environment. So why not give it a try? Embrace the world of corn starch bricks and build a greener future.

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