Persimmon tannin sake bag, cylindrical, open on one side, NO.22. Size: Length 77cm x Width 27cm. Repairs of 6cm x 3cm and stains/scribbles in 3 places. Please refer to the photos. Although they have become less common now, these bags were dyed with persimmon tannin to enhance the preservation of sake bags, which were necessary in the sake brewing process at breweries. The subtle color variations due to the chemical reaction between persimmon tannin and alcohol, as well as the years of use and repaired areas, give them a unique character.