てつや北安大國純米吟醸原酒無濾過Hokuan JozoNagano8/7/2025, 11:52:49 AM8/7/2025家飲み部19てつや3.9 It seems to be brewed with Nagano R yeast, which produces a lot of malic acid. The acidity is guttural, but it is different from that of sake yeast, and is well balanced with the sweetness.Japanese>English