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Why the world's best known brands choose the OU for Kosher certification

The Daf Hakashrus is a monthly OU newsletter read by Mashgichim, Rabbanim, Poskim, Dayanim, and kosher consumers in 30 countries and over 200 cities around the world. The Daf Hakashrus provides readers with the latest, in-depth information about the world of Kashruth.

Please address your comments on these articles to feedback@ou.org indicating the article you are commenting on as well as a name and address for reply.

The Daf HaKashrus is available in color by Email. Please send your Email address to Avigayil Klein kleina@ou.org and request to be included in receiving The Daf's Email edition.

Enjoy your learning!

Rabbi Yosef Grossman - Editor, Daf Ha-Kashrus
Director of OU Kashruth Education

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    Av-Elul 5770/ July-August 2010

    Vol. 18, No. 9

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  • • Starter Culture For Pickling Cucumbers
    By Rabbi Gavriel Price
    • Getting Religious With Slaughter
    By Dr. Temple Grandin
    • Kashruth Alerts
    • Lo Basi Ella L’orer - Ain Mivatlin Issur Lichatchila
    By Rabbi Eli Gersten
    • Tomintoul Announces OU Certification - Single Malt Whisky from the Scottish Highlands
    • Boachem L’shalom - Rabbi Eli Eleff
    • Publications
    • Mazal Tov to…
    • Condolences

    Tammuz 5770 / June 2010

    Vol. 18, No. 8

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  • • Parasites in Fish
    By Rabbi Dovid Bistricer
    • Alcohol Beverage Alert
    • Kashering of HTST/Plate Pasteurizers
    By Rabbi Avrohom Gordimer
    • Lo Basi Ella L’orer - Being Pogem Water
    By Rabbi Eli Gersten
    • Glenmorangie Announces OU Certification - Scotland’s Favorite Single Malt Scotch Goes Kosher
    • Cholov Stam: An Update From the Farm (and Lab)
    By Rabbi Avrohom Gordimer
    • Rav Simcha Kook, Shlita, From Rechovot Visits OU Kosher
    • Electronic Inspection Report (EIR)
    • What’s The Beracha On… Larabar?
    By Rabbi Eli Gersten
    • Kashruth Alerts!
    • Mazal Tov to…

    Iyar 5770 / April 2010

    Vol. 18 / No. 6

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  • • OU Kitniyot Kosher Certification
    By Rabbi Nachum Rabinowitz
    • Curious About Kitniyot?
    By Rabbi Yaakov Luban & Rabbi Eli Gersten
    • “Lo Basi Ela Liorer” Chumra D’pischa
    By Rabbi Eli Gersten
    • Mail
    • Mazal Tov to…
    • Kashruth Alerts!
    • Ask OU Outreach - Yeshiva of New Haven

    Shevat-Adar 5770 / Feb-March 2010

    Vol. 18 / No. 5

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  • • OU Policy on Worms in Fish
    By Rabbi Chaim Goldberg
    • The Tempering of Grains
    Its Chometz and Hafrashas Challah Implication
    By Rabbi Yitzchok Gutterman
    • What’s New for 2010?
    By Rabbi Shmuel Singer
    • Mail
    • Mazal Tov to…
    • Kashruth Alerts!
    • Ask OU Outreach - Lander College Queens, NY
    • An an extended Masah Umatan on Extended IRUI

    Tevet 5770 / January 2010

    Vol. 18 / No. 4

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  • • Extended IRUI Concerning Spray Balls and Pipes
    By Rabbi Eli Gersten
    • Mail
    • Distinguished Guest From Eretz Yisroel Visits OU Kosher
    • Condolences
    • Kashruth Alerts!
    • Kashruth Advisory
    • Mazal Tov to…
    • Saffron

    Kislev 5770 / December 2009

    Vol. 18 / No. 3

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  • • The Kashrus of Papain
    By Rabbi Gavriel Price
    • “America’s Favorite Candy” Goes Kosher-OU Symbol on Package of Tootsie Roll
    • Ask OU Outreach - Passaic-Clifton
    • Mail
    • Kashruth Alerts!
    • Kashruth Advisory
    • Mazal Tov to…
    • Condolences

    Cheshvan 5770 / November 2009

    Vol. 18 / No. 2

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  • • Webinar Dairy Issues
    By Rabbi Avrohom Juravel
    • Chief Rabbis Visit OU Kosher
    • What Beracha Does One Recite On a Granola Bar?
    By Rabbi Eli Gersten
    • Ask OU Outreach - Visits Passaic-Clifton Community
    • Mail
    • Kashruth Alerts!
    • Heering® Coffee OU Certification Announced
    • Mazal Tov to…

    Elul 5769-Tishrei 5770 / Sept.-Oct. 2009

    Vol. 18 / No. 1

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  • • Recycled Ingredients Recycled Ingredients
    by Rabbi Gavriel Price
    • OU Kosher Baking Manual Sets Industry Standards
    • Report On OU Israeli Food Service Establishments Rabbi Luban’s Statement
    • Introducing the “EIR” Electronic Inspection Report
    • OU Pas Yisroel Products (As Of Elul 5769) Compiled
    by Rabbi Yonatan Kaganoff
    • OU’s First Advanced Kashrut Seminar For Women
    • Constant Review Is Required An Inspection Report

    Tamuz-Av 5769/ July-August 2009 (Summer Edition)

    Volume 17 / No. 10

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  • Kashrus of Sake
    by Rabbi Gavriel Price
    • Kashering a kli sheini
    by Rabbi Eli gersten
    • ASK OU Graduates Receive First Orthodox Semichas in Post-Holocaust Germany
    • The DVD’s are Rated OU
    • Kashruth alert!
    • Mazal Tov to…

    Sivan 5769 / June 2009

    Volume 17 / No. 9

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  • Kashering Nitzotzos
    by Rabbi Eli Gersten
    • Reconditioned Drums
    • Daf Notes
    • Nikur DVD For a Prisoner
    • Important Notification
    • Mazal Tov To ...
    • Kashruth Alert!
    • OU Kashruth in action: A Pictorial Essay

    Iyar 5769, May 2009 Supplement

    Volume 16 / No. 8 Supplement

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  • • OU Certified Alcoholic Beverages
    • Remembering Reb Gershon a"h
    by Rabbis L. Steinberg & D. Bistricer
    • Kashruth Alert!
    • Refuah Shlaimah
    • Harry H. Beren ASK OUTREACH Kashrus Shiurim Come to Monsey: Understand Kashrus as You’ve Never Understood it Before

    Iyar 5769/ May 2009

    Volume 17 / No. 8

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  • • OU Tanker Trailer Kosher Wash
    by Rabbi Gavriel Price
    • Byproducts of Wine
    by Rabbi Eli Gersten
    • Gerber Expands Kosher Baby Food Offerings
    by Stephen Steiner
    • OU Presents How to Check for Insects
    • Insect Free: A Guide to Home Vegetable Inspection
    • Publications
    • Mazal Tov to…
    • Condolences to…

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