Heinz is the First

Industrialized kosher certification began with this

The H.J. Heinz Company was the first large food manufacturer to mass produce a kosher-certified product for the grocery shelves in 1923.  Heinz Vegetarian Beans were the first kosher version of their popular canned pork-and-beans.

Other early adopters of this religious certification were WM. Wrigley, Jr. (chewing gum manufacturer), Beech-Nut, Inc., Best Foods, Inc., Dugan Bros., Pepsi-cola, Borden’s Sour Cream, Proctor & Gamble’s Crisco, Hellmann Mayonnaise, Kellogg’s cereal, Garber Eagle Oil Co., and interestingly, Ben Trotsky Caterers (brother of Leon Trotsky, owner of New York City restaurants. See below list from 1942:

1942 directory of OU Kosher goods; As of 2022, they boast of their kosher certification: “over 1,261,754 products produced in more than 9,715 plants located in 103 countries around the world.”
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