A carbonated beverage storage system for preserving the carbonation in a carbonated beverage after it has been opened. The system includes reusable caps that can be secured to opened carbonated beverage containers. The reusable caps include an opening having a gasket therein that provides an airtight seal. A housing is provided that includes a bottle receiving section with a nozzle that can be inserted into the gasket of the reusable cap. An air pump is in fluid communication with the nozzle and can be used to fill the empty space within the beverage container with air in order to preserve the carbonation in the beverage. The beverage container can then be removed from the housing and the reusable cap provides a seal so that the air does not escape the bottle.
