• 3 gallons water
• 4 oz Root Beer Concentrate
• 1 lb sugar
• 1 lb dry ice

In a 5-gallon drink cooler, mix water, root beer concentrate, and sugar. Taste and add more if needed (it should taste like a good root beer, but flat).

Outside or in a very large room (for ventilation), add the dry ice (use tongs – do NOT touch the dry ice with your fingers). Mixture will begin to “boil.” Place cooler lid on top, but DO NOT SECURE. The lid will help the root beer carbonate more thoroughly, but, if pressurized by being sealed, the cooler will explode. Dry ice may solidify around nozzle and require that the root beer be served with a ladle from the top.

Pour and enjoy!

For cream soda, substitute root beer concentrate with equal parts vanilla extract and imitation rum extract. Feel free to get creative with other soda flavors!