Go Back
margaret-ellis

Simple Cornstarch Bioplastic DIY

Create your own cornstarch bioplastic with this simple DIY project that blends crafting and kitchen skills.
Print Recipe
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Servings: 1 batch
Course: Mixing & Heating
Cuisine: Mixing & Heating
Calories: 50
Ingredients Method Notes

Ingredients
  

  • Cornstarch 2 tablespoons per small batch
  • Water about 3 tablespoons per batch
  • Vinegar 1 teaspoon per batch
  • Vegetable glycerin 1 teaspoon per batch (optional)
  • Small saucepan nonreactive; stainless or enamel
  • Wooden spoon or heat-safe spatula
  • Measuring spoons and a small cup
  • Parchment paper or a silicone baking mat
  • Cookie cutters or a small rolling pin optional
  • Small paintbrush and natural dyes or food coloring optional
  • Fine sandpaper or a small file optional
  • Airtight container for storage

Method
 

  1. Gather your materials and clear a small workspace.
  2. Measure cornstarch into your saucepan.
  3. Add the water and whisk until the mix feels smooth and lukewarm.
  4. Stir in vinegar and glycerin.
  5. Heat gently over low to medium heat.
  6. Watch as the mix thickens to a glossy paste.
  7. Remove from heat when it forms a dough-like mass.
  8. Let the mass cool until you can handle it safely.
  9. Shape or roll the dough as desired.
  10. Place shaped pieces on parchment to dry.
  11. Finish by sanding or trimming edges gently.
  12. Store in an airtight container once completely cool and dry.

Notes

Keep finished items away from direct sunlight and humid areas to extend their lifespan.