Riot Beer Katsunuma Base is a brewery that brews from its base in Koshu City, Yamanashi Prefecture. In this installment of its "〰︎brewing log〰︎," the brewery reported that it had brewed Best Bitter the day before, and that fermentation had already started. The line saying they are looking forward to seeing it finished also conveys the atmosphere on site immediately after brewing.

Best Bitter is known as a traditional British ale style, and one of its hallmarks is the balance between malt depth, hops, and easy drinkability. Because it is a style where temperature control and the progress of fermentation can greatly affect the final result more than flashy features, the report that fermentation has started smoothly is something beer fans will want to note.

In addition to brewing news, the post also covered the latest from the Setagaya taproom. The seasonal Sakura Lager, available only during cherry blossom season, has been put on tap, inviting visitors to enjoy its limited-time flavor. Seeing the limited beer with its strong spring atmosphere alongside the classic style being brewed at Katsunuma Base gives a more three-dimensional sense of the brewery's overall activity.

The post also announced weekend plans, including 'Sound & Chair'26 on Saturday, 3/28 and 'Nigiwai Spring Festival' on Sunday, 3/29. It suggests an operating style that, while based in Katsunuma in Koshu City, Yamanashi, also connects with the Setagaya taproom and events in other places. By bringing brewing, a limited tap opening, and event information together in one post, it becomes a worthwhile brewing log for readers who want to know about day-to-day activity.