OU Kosher |

OU Recipes divider

Clarification of OU Yoshon Certification

What Could Be Wrong?

By Rabbi Yaakov Luban When I was a child, shopping for a kosher candy bar was a simple matter. In those days, a candy bar was only a nickel.

The Mezonos Roll… Is It a Piece of Cake?

By Rabbi Yaakov Luban A review of the laws of and the proper Bracha for "Mezonos Rolls".

A Guide to Tevilat Keilim

By Rabbi B. Forst (reviewed by Rav Belsky) A review of the laws of Tevilas Kailim and which items require tevilah

How the Sabbatical Year Affects Jews the World Over (Shmittah 5754)

By Rabbi Hershel Schachter

Shechita

By Rabbi Yisrael Belsky A review of the laws of the proper slaughter of Kosher animals and how they are applied in an industrial setting.

Separating Terumah and Ma’ aser

By Rabbi Yaakov Luban

Do Natural + Wholesome = Kosher?: A biochemist takes a second look at “natural” foods

By Dr. Judith Leff

Is Your Oven Kosher? What Every Kosher Cook Must Know

By Rabbi Yaakov Luban From the Talmudic kirah to our modern microwave, oven cooking requires specific kosher knowledge. Rabbi Yaakov Luban, Senior Rabbinic Coordinator of the OU Kosher Division, explains the halachos involved and provides a practical guideline.

Kosher in the Dairy Case

By Rabbi Sheldon Blech

The Illegal OU

By Rabbi Howard Katzenstein As the largest kosher certifying agency in the world, the OU is deeply concerned about protecting the integrity of our kosher symbol.