Abstract: To offer a process for producing tea and a process for producing a liquid extract including pyrazines. A process for producing tea, which includes extracting a liquid extract from barley tea starting material under conditions of pressure, where at least 20 wt % of the barley tea starting material has a particle size of less than 1700 ?m. A process for producing a liquid extract including pyrazines, which includes extracting a liquid extract from barley under temperature conditions of at least 100° C., and in extracting the liquid extract, the liquid extract is extracted from the barley under conditions of pressure.

Abstract: An object of the present invention is to provide a carbonated beverage containing soybean powder or soymilk, wherein the carbonated beverage is provided with a refreshing carbonic acid flavor as well as nutrients and good flavor derived from soybeans, and the soybean-derived ingredient is stably maintained without becoming coagulated even when the content of the soybean-derived ingredient is high. By adjusting the pH of the carbonated beverage containing soybean powder and/or soymilk to 5.7 or higher, it is possible to stably maintain the soybean-derived ingredient without coagulation, and to provide the beverage with a refreshing carbonic acid flavor as well as nutrients and good flavor derived from soybeans.