Daf ha-kashrus

SIVAN 5776/ JUNE 2016

• Lo Basi Ela L’Orer: Steam Table • In Memory of HaGaon HaRav Chaim Yisroel Belsky zt”l • Recent OU Kosher Halacha Yomis • What in the World is Whey? • Kashrus Alert, Mazel Tov…

Daf Hakashrus Shavuos 5776 – Consumer Edition

• What in the World is Whey? • Is Your Oven Kosher? – Part II  


• Lo Basi Ela L’Orer: Cold Whey • Mifustar – is It Mevushal? • Recent OU Kosher Halacha Yomis • Ask OU, Mazel Tov, Condolences, Kashrus Alert, Kashrus Advisory

Cold Whey

The OU accepts whey from cold non-kosher cheese production, provided that the cheese is made with kosher rennet. However, there is a disagreement among poskim, regarding whey that was made with animal rennet. Teshuvos Chasam Sofer (Y.D. 77) assumes that the rennet acts as a ma’amid on the whey, and he therefore writes that whey […]

Daf Hakashrus Purim 5776 – Consumer Edition

• Hagaon Harav Chaim Yisroel Halevi Belsky Zt”l – An Appreciation • Is Your Oven Kosher? – What every Kosher Cook Must Know • Mifustar – Is it Mevushal?


WHAT EVERY KOSHER COOK MUST KNOW From the ancient kirah to our modern microwave, oven cooking requires specific kashrus knowledge. Rabbi Luban explains the halachos involved and provides a practical guideline. A tasty food can be made inedible if not prepared properly. The same is true in the realm of kashruth. As we are meticulously […]


The kosher wine consumer knows that when shopping for wine, in addition to checking the bottle for a reliable hashgacha, they must also check to see if the wine is labeled mevushal or non-mevushal. Mevushal wine may be handled, and even poured by a non-Jew or a non-shomer Shabbos Jew; however non-mevushal wine, once opened, […]

Devotion & Passion

A Tribute to the Life of Rabbi Emanuel Holzer zt”l On the 13th day of Adar 1, Erev Purim Katan, 5776, Rabbi Emanuel (Manny) Holzer zt”l passed away. Rabbi Holzer, an extraordinarily devoted disciple of the Rav, Rav Yosef Dov Soloveitchik, zt”l, was an outstanding osek betzorchei tsibur, who dedicated much of his life to the […]

ADAR BAIS 5776/ MARCH 2016

• OU-P 2016 – What’s New? • Devotion & Passion – A Tribute to the Life of Rabbi Emanuel Holzer zt”l • Messaging Tips from Heaven • Lo Basi Ela L’Orer: Ma’amid of Cheese • Azkarah for Rav Belsky zt”l at OU Kosher • Recent OU Kosher Halacha Yomis • Mazel Tov, Condolences, Kashrus Alert… • Mail…


• An Appreciation • Rav Belsky Zt”l – an appreciation • A Giant in Our Midst • Rabbi Belsky Remembered • Interactions with Rav Belsky Zt”l – Redefining the Word “Irreplaceable” •  Kashrus Alert, Mazal Tov, Condolences…