How Do You Shrink a Styrofoam Cup

Place the styrofoam pieces on the cookie sheet and bake for about five minutes. Different styrofoam may shrink differently, so monitor the styrofoam closely during this time. It will curl up as it shrinks, and then flatten back down when it’s done.

Is there a way to shrink Styrofoam?

Place the styrofoam pieces on the cookie sheet and bake for about five minutes. Different styrofoam may shrink differently, so monitor the styrofoam closely during this time. It will curl up as it shrinks, and then flatten back down when it’s done.

Does Styrofoam shrink in water?

During descents into the ocean, the accumulated weight of water increases and pressure builds up — about 14.7 pounds per square inch for every 33 feet (10 meters) of depth. … “The Styrofoam cup shrinks uniformly as it is lowered into the ocean and the air bubbles are pressed out of it.”