Sakabukuro
Prior to Japan's industrialization, cotton bags permeated with fermented green persimmon tannin or kaki shibu were used in the production of sake. Crude sake, or sake lees were poured into this sakabukuro and filtered sake was forced out using pressure. Because these bags were used countless times they required mending--and the eccentric stitches and patching on sakabukuro are evidence of its repeated use.