Morino Yochino Hon Kuzu Arrowroot StarchMorino Yochino Hon Kuzu (Japanese Arrow root Starch or Kudzu) 6. 3 oz Nara, Japan Ultra refined, pure arrowroot from Japan Called HON'KUZU in Japan, because this pure arrowroot powder is the finest quality available. The root is harvested during the cold winter months when the nutrients and starch are most concentrated in the root. After being carefully softened by three weeks of repeated beating, the roots are processed through ten rounds of rinsing