Cornstarch Bioplastic for Pressed Flowers
A calming and mindful project to create biodegradable sheets for preserving pressed flowers, using simple pantry ingredients.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Total Time: 4 hours
- Yield: 1 sheet
- Category: Craft
- Method: Crafting
- Cuisine: N/A
- Diet: N/A
Ingredients
Scale
- 2 tablespoons cornstarch
- 1 cup lukewarm water
- 1 teaspoon white vinegar
- 1 teaspoon coconut oil or light vegetable oil
- 1 teaspoon glycerin (optional)
- Parchment paper or silicone baking mat
- Wooden spoon or silicone spatula
- Weights or books for flattening
- Clean, dry pressed flowers or petals
- Small craft scissors
Instructions
- Gather your ingredients and tools on a quiet surface.
- Mix 2 tablespoons cornstarch with 1 cup water in the saucepan, stirring until mostly smooth.
- Add 1 teaspoon vinegar and 1 teaspoon oil to the mixture. Stir gently.
- Heat the pan over medium-low heat, stirring continuously.
- Watch the mixture thicken into a translucent paste (5 to 8 minutes).
- Remove the pan from heat when the paste is thick and stretchable.
- Prepare your work surface with parchment paper or silicone mat.
- Pour the warm paste into a small mound and spread it into an even layer.
- Arrange your pressed flowers gently on the warm sheet.
- Cover with another layer of parchment and place a weight on top.
- Leave to cool and set for at least 2 to 4 hours, or overnight.
- Peel the sheet from the parchment and trim if necessary.
- Smooth edges with fine sandpaper if desired.
Notes
Glycerin and coconut oil are optional; use as needed for desired texture. Ensure petals are dry and well-pressed to avoid mold.