The Brew Your Own Root Beer Kit - Make 1 to 4 gallons of delicious old fashion root beer naturally carbonated with real yeast and bottled in recycled plastic soda bottles. -- There is absolutely nothing like a refreshing gulp of home-brewed root beer. This easy to use kit lets you brew up a goodly batch you"re sure to enjoy. Makes a great project or a perfect birthday gift. -- Includes: 2 oz. root beer extract, special brewing yeast, funnel, project guide, blank labels, storage container. -- Required but not included: two 2-liter plastic soda bottles with screw caps or four 1-liter plastic soda bottles with bottle caps, 2 cups of sugar, a pot large enough to hold a gallon.