Founded in 1863, Ishikawa Brewery is a historic sake brewery based in Tokyo, Japan. It is known for producing its signature sake brand, 'Tamajiman,' and has also ventured into craft beer brewing with 'Tama no Megumi' and 'Tokyo Blues' lines. The brewery uses high-quality natural mineral water sourced from the area to craft its sake and beer. Ishikawa Brewery also offers brewery tours and tasting experiences, showcasing the traditional brewing process and historic facilities.