THE BAIS HAVAAD HALACHA JOURNAL: Volume 5776 Issue XXXV Bamidbar KOSHER SUPERVISION ON FISH Can one buy kosher fish from a non-kosher store? Does one need to see the scales on the fish? By OU Kosher Halacha Yomis This column is dedicated in memory of: Rav Chaim Yisroel ben Reb Dov HaLevi Belsky, zt'l Senior OU Kosher Halachic Consultant from 1987-2016

Q. May I purchase a kosher fish from a non-kosher fish store? Assuming you confirmed the fish was kosher (by seeing a scale removed or by recognition of the species of fish), the remaining concern would be the knives, board and gloves with which it is handled. Assuming they are all washed properly, it is permitted to purchase the fish. If the fish was cut with a dirty, non-kosher knife, one would need to wash it and pass the sharp side of a knife over it (maavir alav chudo shel sakin) in order to remove the non-kosher residue. (see Pischei Teshuva 96:5, b’shem Teshuvos Chavos Yair 179)