Orthodox Union Kosher

Orthodox Union Kosher, known as OU Kosher or OUK, is a kosher certification agency based in New York, New York. It was founded in 1923 by Abraham Goldstein. It is the certification agency of about 70% of kosher food worldwide, and is the largest of the “Big Five” major certification agencies, which include OK, Kof-K, Star-K, and CRC.

Orthodox Union Kosher

Orthodox Union Kosher, known as OU Kosher or OUK, is a kosher certification agency based in New York, New York. It was founded in 1923 by Abraham Goldstein. It is the certification agency of about 70% of kosher food worldwide, and is the largest of the “Big Five” major certification agencies, which include OK, Kof-K, Star-K, and CRC.