How to Shrink Styrofoam at Home

- Preheat the oven to 300 degrees Fahrenheit (149 degrees Celsius).

- Place the Styrofoam in an oven-safe dish.

- Bake the Styrofoam for 5-10 minutes, or until it has puffed up to about twice its original size.

- Remove the Styrofoam from the oven and let it cool completely.

2. Blow air to Styrofoam.

- Use a hair dryer or heat gun to blow hot air to the Styrofoam.

- Styrofoam will shrink to smaller size while hot air is blown.

- Avoid to heat too long since styrofoam can catch fire easily.

3. Use a solvent.

- Acetone, benzene, and toluene can dissolve Styrofoam.

- Apply the solvent to the Styrofoam with a brush or rag.

- The Styrofoam will begin to dissolve and shrink.

- Be sure to work in a well-ventilated area and avoid contact with skin and eyes.

4. Use a hot liquid.

- Boiling water, cooking oil, or steam can also shrink Styrofoam.

- Pour the hot liquid over the Styrofoam.

- The Styrofoam will begin to melt and shrink.

- Be sure to wear gloves and eye protection when using hot liquids.