Method for dissolving carbon dioxide without pressurizing and cooling

A method of increasing a carbon dioxide amount of a beverage in a bottle or a can without causing overflow of the beverage or evaporation of the carbon dioxide, the method consisting of:

• placing a beverage composition without carbon dioxide in the bottle or the can;
• introducing solid or liquid form of carbon dioxide to the beverage composition in the bottle or the can to delay a change of vapor pressure in the bottle or the can, wherein an amount of the solid or liquid form of the carbon dioxide introduced is 0.05 to 5 wt % with respect to a total weight of the beverage composition;
• and
• sealing the bottle or the can before the introduced solid or liquid form of the carbon dioxide is completely dissolved in the beverage composition, wherein the bottle or the can is sealed in 3 seconds after introduction of the solid or liquid form of the carbon dioxide,
• wherein a part of the introduced solid or liquid form of the carbon dioxide in the sealed bottle or the can becomes gas during the introducing step and the rest of the introduced solid or liquid form of the carbon dioxide is dissolved in the beverage composition by pressure of the gas after the sealing step.