Halacha Yomis - Insect identification OU Kosher Halacha Yomis This column is dedicated in memory of: Rav Chaim Yisroel Belsky, zt'l Senior OU Kosher Halachic Consultant (1987-2016)

Q. If an insect is not identifiable without magnification, but is definitely noticeable to the naked eye as “something”, is it forbidden? A. The OU follows the opinion of Rav Shlomo Zalman Auerbach zt”l (Halichos Shlomo Moadim (Pesach), p. 176) and Rav Shmuel HaLevi Wosner zt”l (Shevet HaLevi 7:122) that if the only way to identify the dot as an insect is through magnification, it would be permitted. However, it should be noted that often one who is familiar with insects can identify the “thing” as an insect through subtle shapes and forms, even though a layman might not know to do so. For example, the one who is familiar with insects might spot a wing-part, or the armor like structure of the abdomen. In such instances, the insect is considered to be visible and is prohibited. In addition, if the insect is alive and its movement can be detected, the insect is considered visible to the naked eye and is prohibited.