Consumer Kosher Articles

A Guide for Mitzvah-Keepers with Housekeepers

Mi-Hu Yehudi? Here’s an Erev Shabbos “mishap” you don’t hear about very often… A rabbi, the scion of a rabbinic dynasty, sees that things are particularly busy in his home one Erev Shabbos and he asks his Hispanic non-Jewish housekeeper if she can perhaps stay into Shabbos. She agrees readily, but on one condition: they […]

OU Kosher Halacha Yomis: Chanukah

Whether to say havdalah or light chanukah candles first on Motzei Shabbos Baking and Cooking While the Chanukah lights are burning Chanukah Gelt What can be used as a menorah? Do guests light their own menorahs? Is there Any Obligation to Make a Seudah (Meal) in Honor of Chanukah? Which Comes First on Motzei Shabbos, Chanukah […]

Summary of OU Insect Checking Policies

Fruits, vegetables or berries that are expected to possibly contain insects must be checked prior to use. The minimum rate of infestation that requires checking is 10%. Magnification is not required when checking, although it may be used as an aid for training purposes or to help check faster. Insects that cannot be properly identified […]

Can skinless salmon be assumed to be kosher?

Although kosher fish are usually identified only by the presence of scales [1] , the Orthodox Union has a long standing policy of accepting as kosher all reddish-pinkish fillets, even without a piece of skin by which the fillet can be identified. The basis for this policy is that there is no fish [2] that […]

Color Additives and Kashrus

The following article is an overview of colorants used in the food industry. Kashrus considerations for colorants focus not only on the manufacture of colorants themselves but on any ingredients that may be used with colorants to help make them compatible in a given food system. The first part of the article will survey natural […]

Preparing for Sukkot 5777 – Q&A

SUKKAH Q & A Are there any rules as to where a sukkah may or may not be located? The sukkah should not be located in an area that has a bad smell.1 It cannot be placed under a tree or awning. It should preferably be built on a patio, deck or driveway and not on […]

Yom Kippur: A Halachic Guide

The following is meant as a convenient review of Halachos pertaining to Yom Kippur. The Piskei Din for the most part are based purely on the Sugyos, Shulchan Aruch and Rama, and the Mishna Berura, unless stated otherwise. They are based on my understanding of the aforementioned texts through the teachings of my Rebbeim. As […]

Is Your Oven Kosher? – Part III: What Every Kosher Cook Must Know

MICROWAVE OVENS Our discussion up to this point has focused on gas and electric ovens. A microwave oven follows the same general principals, but the application of these rules is different because of the manner in which a microwave oven operates. A microwave oven heats the water molecules (every food has some moisture), and the […]

9/11 Diary from the OU Archives: The Triumph of the Human Spirit

IT WAS SURELY going to be just another typical Tuesday at the office. I arrived at the OU’s headquarters– located just six blocks south of the World Trade Center – at 8:25 A.M. and found the other early birds at their workstations. I began to settle down, turned on my computer and was reading my […]

Somtimes It’s Not The Food: Kashrut, Allergens And Microbes