How To Make Bioplastics From Potato Starch

Bioplastic Plant Pot by Harry Yoell « Inhabitat Green Design


Bioplastics are a sustainable alternative to traditional plastics that are made from petroleum-based materials. Potato starch is a great source of bioplastic material that can be easily sourced from the market. In this tutorial, we will discuss the steps to make bioplastics from potato starch.

Materials Required

Potato Starch

The first material required is potato starch. The quality of the potato starch plays an important role in the quality of the bioplastic. It is recommended to use a high-quality potato starch to get the desired results.


Glycerol is a common ingredient used in making bioplastics. It acts as a plasticizer and helps in making the bioplastic more flexible.


Vinegar is used as a softener and helps in making the bioplastic more pliable. It also helps in reducing the brittleness of the bioplastic.


Water is required to dissolve the potato starch and make the bioplastic mixture.


Step 1: Mix the Materials

To make the bioplastic mixture, take 1 cup of potato starch, 4 tablespoons of glycerol, 1 tablespoon of vinegar, and 1 cup of water in a mixing bowl. Mix all the ingredients until they are well combined.

Step 2: Heat the Mixture

Heat the mixture on low heat while continuously stirring it. Keep stirring the mixture until it thickens and becomes sticky.

Step 3: Shape the Bioplastic

Once the mixture has thickened, take it off the heat and let it cool down to room temperature. Once it has cooled down, take a small amount of the mixture and shape it into the desired shape.

Step 4: Dry the Bioplastic

Place the shaped bioplastic on a flat surface and let it dry for 24-48 hours. Once it has dried, the bioplastic is ready to use.


Making bioplastics from potato starch is a simple and easy process. It is a sustainable alternative to traditional plastics that are harmful to the environment. By making bioplastics from potato starch, we can contribute to a cleaner and greener environment.


Use high-quality potato starch for best results.

Adjust the quantity of glycerol and vinegar to get the desired flexibility and pliability of the bioplastic.

Keep the bioplastic mixture stirring continuously to avoid lumps.