The firms say more workers are enjoying these drinks during lunchtime and other breaks. Suntory is installing 500 special vending machines in office buildings.
A Suntory official says employees of companies where the machines have been installed are trying beer-like drinks that do not contain alcohol for a change of pace.
Demand for such beverages peaks in July and August.
Kirin Brewery will double output of these drinks during the 2 months, and Asahi Brewery will increase it by 20 percent.
Competition among brewers is likely to intensify as they try to make up for falling sales of regular beer caused by a legal revision aimed at preventing excessive discounts.
Source and image: NHK