Yokosuka-based GRANDLINE BREWING will take part in Tsukuba Craft Beer Fest 2026, and the festival's announcement describes the appearance as its first in Ibaraki. Founded in 2023 near Mikasa Park in Yokosuka, the brewery has built its identity around a communication-brewery approach.

On its official site, GRANDLINE BREWING says it aims to create glocal beer that connects Yokosuka with Japan and the wider world. The brewery also emphasizes ideas that move beyond the usual boundaries of brewing, including projects tied to its broader beer community.

The beer highlighted for the event is `Mrs. Scarlet / Fruited Sour Ale`. It is described as a vivid scarlet-red beer with mango and passion fruit character and a sharp, dry finish. The post also suggests pairing it with New York cheesecake, making it an easy festival-friendly match.

Event details


- Oct. 16 (Fri) 15:00-22:00
- Oct. 17 (Sat) 11:00-22:00
- Oct. 18 (Sun) 11:00-18:00
- Venue: Tsukuba Center Square, right next to TX Tsukuba Station
- Admission is free. Visitors can buy a reusable cup on site or bring their own mug.