Begin your tour at Seiun Sake Brewery in Ogawa Town, Saitama Prefecture, and learn about the brewery’s philosophy and the key elements that shape its sake. Through a step-by-step explanation, discover how local water sources, seasonal conditions, and brewing techniques influence production, and how brewers’ decisions affect aroma, texture, and flavour. Next, visit the brewery shop and taste the famous spring water known as “Tama no Ido.” Drawn from deep underground, this pure water is the foundation of Seiun’s sake and highlights the importance of water quality in brewing. The experience continues with a guided tasting using the brewery’s modern tasting machines. Sample a curated selection of seasonal sakes while learning how differences in ingredients, fermentation, ageing, and serving temperature create unique characteristics in each brew. Suitable for both beginners and sake enthusiasts, this experience provides accurate and engaging information, allowing participants to compare styles, discover personal preferences, and gain a deeper appreciation of the diversity of Japanese sake.