We had it cold at a soba noodle restaurant.
All-you-can-drink 1300 yen (with one appetizer)
Interesting system of pouring the drink from the fridge into a buckwheat buckwheat cup.
Reminder to self
This is the third Niigata souvenir from a junior colleague who wrote "Kakurei" (not "Tsururei") in hiragana on the cap.
It is fruity, dry, and leaves a lingering aftertaste on the tip of the tongue. Delicious!