Next in sequential number for Kyokai sake yeast is #7, discovered at Miyasaka (makers of Masumi) in Nagano in 1945.
Miyasaka have also announced a “Nanago Summit” (nanago = #7 = 7号) in July (month 7) of 2025, although so far the only event is a special dinner in collaboration with a local French bistro and coffee shop to highlight sake and coffee.
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It’s not clear if this will be the only event (doesn’t quite feel like a “summit”), more could be announced before July.
【NANAGO SUMMIT 2025】開催決定！ Masumi_sake Instagram (accessed 10 June 2025, Japanese)
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