To create the Spooky Halloween Jack-O-Lantern with dry ice fog, you will need:
- A large pumpkin
- A small bowl
- Hot water
- Dry ice
Make sure to follow all dry ice safe handling precautions.
Choose a pumpkin large enough to hold a small bowl inside. Clean out the pumpkin and carve a friendly or a frightening face. Keep in mind, carbon dioxide fog sinks so more fog will flow out of the bottom.
When you are done cleaning out and carving your pumpkin, fill a small bowl about half full with hot water and mix in a cup of salt (optional).
Place the bowl inside of the pumpkin. Wearing thick gloves, drop two or three large pieces of dry ice into the bowl of water and cover the top of your pumpkin. Make sure the lid fits tightly to eliminate air currents dissipating the fog. As the water cools, add more hot water to maintain the fog effect. As a rule of thumb, one pound of dry ice will create 2-3 minutes of fog effect. The hotter the water, the more fog, but the quicker dissipation of the dry ice.