Don’t fill your bucket or container all the way since the dry ice will cause it to bubble and spill over once you add it. You can reduce the amount of water you use to fit whatever container you need. Avoid adding dry ice to boiling water since this will cause water to spout up violently.
Put on your gloves even if you plan on using tongs or a scoop to transfer your ice since they can also get cold the more you use them with the dry ice.
You can buy dry ice from some grocery stores or ice suppliers, or you can make your own. Get dry ice pellets if you don’t want to break it apart yourself. Store your dry ice in an insulated container in a well-ventilated area before you plan on using it.
Put a sign near the container with your dry ice to warn any guests not to touch it.
If you put in more dry ice and it still isn’t creating vapor, the water may have gotten too cold. Try emptying the cold water from the container and refilling it with something warmer than 50 °F (10 °C). [7] X Research source
Warn any guests that there is dry ice in the punchbowl so they don’t accidentally put some in their cup and drink it.
Make sure to keep decorations with dry ice away from children so they don’t touch the dry ice or hurt themselves. Halloween decorations that have dry ice work best indoors since the wind will cause the smoke to disappear more quickly.
The smoke from the dry ice will inflate the bubble and it will eventually pop, causing the smoke to spill over the sides of the bowl. If may take multiple times to start your bubble. If you have trouble getting it started, try dipping the towel in the soapy water before trying again. Be careful that the light gels don’t touch the light bulbs since they could melt from the heat.
Replace the dry ice every 20-30 minutes if you want to keep creating more fog. Set up the machine and pipe against a wall so people don’t trip over it by accident.
If you have an unheated pool, the dry ice won’t make as much smoke, but it will bubble. The dry ice can make your pool more alkaline, so you may need to adjust the chemicals after doing this.
Use a spotlight or flashlight with a sheet of colored plastic over it if you only want to light your smoke in a specific place.