Daf ha-kashrus

Kashering Pipes Properly

by Rabbi Simcha Smolensky, Senior RFR I’ve thought many times about the fluid dynamic physics of product (i.e., oil, chocolate, anything liquid) as well as water (as is used for kashering) moving through pipes. We typically kasher pipes by pumping boiling water through them. Thinking about the physics of this movement, there are a few…

CHESHVAN 5775 / NOVEMBER 2014

• Practical Shemittah • Kashering Pipes Properly • Chanan Lach B’Lach • Kashrus Alert • Kashrus Advisory • Mazel Tov • Condolences

Steam Heating – Lo Basi Ela L’Orer

by Rabbi Eli Gersten Although the term “kli rishon” conjures up in our minds a picture of a pot sitting on a flame, in reality in most modern industrial settings the kli rishon refers to a vessel that is heated by steam. Whether it be through steam jacketed kettles, direct steam injection, or hot air…

ELUL 5774-TISHREI 5775/ SEPT.- OCT. 2014

• Steam Heating by Rabbi Eli Gersten • A Shemittah Primer by Rabbi Moshe Zywica • Pas Yisroel Products • An Eruv Tavshilin Primer • ASK OU 12 Draws Largest Group • What’s the beracha on… Vegetables and Herbs • What’s the beracha on…  Grains and Grain Products • Kashrus Alerts… Mulberries no Longer Group 1 • Kashrus Advisory • Mazel Tov……

Daf Hakashrus Yomim Noraim 5775 – Consumer Edition

• Shofar at the Heat Exchanger, A Story of Mesiras Nefesh for Kashrus • Practical Shemittah

BLOWING SHOFAR TOWARDS THE HEAT EXCHANGER

A true-life story of present day Mesiras Nefesh for Kashrus By Rabbi Yitzchok Gallor, RFR, Seattle, Washington On the night of Rosh HaShanah, as you walk home from Shul with your precious children by your side, you reflect upon the tranquility of Yom Tov. You imagine with great anticipation the scene at your home…the L’Shana…

Practical Shemittah

by Rabbi Dovid Bistricer, Rabbinic Coordinator Every seven years, we have a special opportunity in eretz Yisroel to fulfill the mitzvah of shemittah. During this sabbatical year, agricultural fields are not worked, while fruits and vegetables become public property. According to the sefer Hachinuch[1], laying the lands fallow is an affirmation that one’s sustenance is…

The Latest on Oreo Cookies

At the present time, most varieties of Oreo Cookies contain dairy ingredients, with three notable exceptions. Original Oreo Sandwich Cookies, Oreo Double Stuf Sandwich Cookies and Mini Original Oreo Sandwich Cookies do not contain dairy ingredients, though they are manufactured on dairy equipment.  The equipment is not necessarily cleaned before the production of these three…

Lo Basi Ela L’Orer: ZEIYA

By Rabbi Eli Gersten Shulchan Aruch (Y.D. 123:24) says that wine alcohol which was distilled from stam yaynam remains assur b’hanah just like the wine itself.  Although the alcohol is just the collected zeiya (vapors) from the wine, zeiya of issur retains its status. Similarly, Shulchan Aruch (Y.D. 92:8) writes that zeiya that emanates from…

MENACHEM AV 5774/ AUGUST 2014

• ZEIYA By Rabbi Eli Gersten • A Question that Begs an Answer • The Latest on Oreo Cookies • A Philadelphia Story, ASK OU Outreach and First Seder Presentation in Bala Cynwyd • What’s the Beracha on Meat, Fish and Eggs • Kashrus Advisory… • Mazel Tov… •  Kashrus Alert…. • Condolences

Page 5 of 18