Mr. Root Beer Refill Pack Designed to work with the Mr Rootbeer Homemade Root Beer Kit (not included) Refill kits yields 2 gallons of root beer The kit produces a very traditional old-fashioned tasting root beer that is a hit with adults and children alike Mr. Root Beer mixes are designed specifically to be carbonated in the bottle (not included) Due to this carbonation process your root beer contains trace amounts of alcohol (about 1% ABW) Fun, Simple and Economical Excellent Gift Item Rootbeer that is naturally carbonated Smoother creamier taste. 2 No-Rinse Cleanser, Root Beer Guide.