Recently, possibly due to the shortage, there’s been several unauthorized Kof-K’s on Nori Sheets. They do not certified any Nori produced in China.
The only Nori company certified by the Kof-K is Yamamotoyama.
From Rabbi Eidlitz – Cheshvon 2025
Kosher Alerts – חשון תשפ”ו Great Value No Crust Sandwiches Hazelnut Spread with Cocoa Issue: Missing DAIRY Symbol This product is certified Kosher DAIRY; however,
