Kashrus Halacha
Rabbi Dovid Cohen
Laws of kosher as they apply in contemporary times, taught by Rabbi Dovid Cohen of cRc Kosher.
Shiurim
- Scotch Aged in Sherry Casks (Alcoholic Beverages #45 - 135:13)
Rabbi Dovid Cohen
Scotch Aged in Sherry Casks - Introduction and review - Depth of b’liah - Kashering Buy the book at www.kashrushalacha.com
- Terumah and Ma'aser (Kosher Anthology 3)
Rabbi Dovid Cohen
Terumah and Ma'aser: Which foods; Spices / tavlin (vanilla, citrus oils); Hafrashah; Ownership; Kedushah; Biur ma'asros; Kashering. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Washing Dishes [Principles] (Bitul and Blios #14 - Shulchan Aruch 95:3-4)
Rabbi Dovid Cohen
Washing Dishes Part 1 of a 5 part series on washing dishes; Principles / General Halachos; Nat bar nat (primary details, extensions); Pegimah. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Starbucks Coffee (Kosher Classes #45)
Rabbi Dovid Cohen
Starbucks Coffee
- Maris Ayin (Hashgachah Practicum #49 - Consumer I)
Rabbi Dovid Cohen
Maris Ayin: Meat and milk - pareve dairy or meat, cultured meat; Non-kosher and kosher - eggs, restaurants; Other issues - Pesach, Shabbos and Yom Tov, tevillas keilim, hafrashas challah. See seforim by Rabbi Cohen at www.kash
- Seals (Alcoholic Beverages #42 - 123:23)
Rabbi Dovid Cohen
Seals - Seals and locks - Non-Jew’s kosher wine - Coravin Buy the book at www.kashrushalacha.com
- Chalav Stam Keilim (Kosher Dairy #9 - Shulchan Aruch 115:1)
Rabbi Dovid Cohen
Chalav Stam Keilim Home use Kashering (libun gamur, kovush, gevinas akum, cheress)
- Electrical Appliances (Tevillas Keilim #19 - Shulchan Aruch 120:11)
Rabbi Dovid Cohen
Electrical Appliances Damage from tevillah (electrical circuit issues, corrosion) Asui leshamesh im hakarka (Chelkas Yaakov) Can’t be toiveled Buy the book at www.kashrushalacha.com
- Water (Q&A #10)
Rabbi Dovid Cohen
Water See seforim by Rabbi Cohen at www.kashrushalacha.com
- Matzah for Celiacs (Pesach #4)
Rabbi Dovid Cohen
Matzah for Celiacs
- Arlah & Shatnez (Halachos of Insects #19 - Shulchan Aruch 84:9)
Rabbi Dovid Cohen
Arlah Shatnez Buy the book at www.kashrushalacha.com
- Shulchan Melachim (Bishul Yisroel #19 - Shulchan Aruch 113:1)
Rabbi Dovid Cohen
Shulchan Melachim Chazon Ish Explanation Buy the book at www.kashrushalacha.com
- Bison and Zebu (Meat and Poultry #1 - Livestock A)
Rabbi Dovid Cohen
When is mesorah required to determine that a breed is kosher?
- Gluten Free on Pesach (Q&A 55)
Rabbi Dovid Cohen
Gluten Free on Pesach See seforim by Rabbi Cohen at www.kashrushalacha.com
- Tasting (Bitul and Blios #25 - Shulchan Aruch YD 98:1)
Rabbi Dovid Cohen
Tasting; Te'imas Kefeilah (טעימת קפילא); Te'imas Yisroel (טעימת ישראל); Pesach Production; What is "tasting"; Other (fast day, 6 hours); See seforim by Rabbi Cohen at www.kashrushalacha.com
- Fish (Q&A #3) (Feb 15, 2023)
Rabbi Dovid Cohen
Fish. See seforim by Rabbi Cohen at www.kashrushalacha.com
- 10 Animals [Part 4] (Kosher Anthology 34)
Rabbi Dovid Cohen
10 Animals [Part 4]; Dishon (Re'em, rhinoceros, addax, chamois); Kudu horn shofar; Se'oh (Turbala, shor habor, buffalo, Aurochs, oryx); Zamer (giraffe, okapi); See seforim by Rabbi Cohen at www.kashrushalacha.com
- Food Preparation (Klei Seudah - Part 2) (Tevillas Keilim #6 - Shulchan Aruch 120:5a)
Rabbi Dovid Cohen
Food Preparation (Klei Seudah – Part 2) Shechitah knife Reddler Rolling pin and other examples But the book at www.kashrushalacha.com
- Nosein Ta'am Lifgam [Part 1] (Kosher Classes #18)
Rabbi Dovid Cohen
Nosein Ta'am Lifgam (part 1): Dishwashers Pegimah of a steam system
- Shemittah [for Middle School students] (Kosher Classes #29)
Rabbi Dovid Cohen
Shemittah For Middle School students
- Panko Bread Crumbs (Hafrashas Challah #24 - Shulchan Aruch 329:7)
Rabbi Dovid Cohen
Panko Bread Crumbs Process Hafrashas challah Pas Yisroel Kutach in Shulchan Aruch
- Greenhouse Produce of Shemittah (Shemittah #6 - Location B)
Rabbi Dovid Cohen
Greenhouses - Introduction - Atzis she'aino nakuv - Zoreah babayis - Other factors - Summary Buy the book at www.kashrushalacha.com
- Zeh V'zeh Gorem [Part 2 - Emulsifiers] (Bitul and B'lios #3 - Shulchan Aruch YD 87:11)
Rabbi Dovid Cohen
Zeh V'zeh Gorem [Part 2] Simultaneous or Consecutive? (sherry casks, blenders) Emulsifiers (definition, status as ma'amid, zeh v'zeh gorem) See seforim by Rabbi Cohen at www.kashrushalacha.com
- Succah (Kosher Anthology 70)
Rabbi Dovid Cohen
Succah: Location; K’ein taduru; Shabbos and Yom Tov; Overhead; Walls - size, fabric walls, height; S’chach - materials, ma’amid, non-Jews, other. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Non-Dairy Creamer (Kosher Anthology 41)
Rabbi Dovid Cohen
Non-Dairy Creamer: Sodium Caseinate; Bitul; Second chance. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Libun Kal as Hag'alah (Kashering #22 - Shulchan Aruch 451:13)
Rabbi Dovid Cohen
Libun kal as hag'alah
- Davar Sheyesh Lo Matirim [Part 1] (Bitul and Blios #38 - Shulchan Aruch YD 102-1)
Rabbi Dovid Cohen
Davar Sheyesh Lo Matirim [Part 1]: דבר שיש לו מתירין: Basics; Min b'mino; Chodosh malt (chametz, bitul, sfek sfekah). See seforim by Rabbi Cohen at www.kashrushalacha.com
- Grasshoppers (Kosher Anthology 69)
Rabbi Dovid Cohen
Grasshoppers: Kera'ayim; Rashi - simple reading, Rav Kappach, Sichas Chullin; Mesorah; Other halachos. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Liver (Q&A 84)
Rabbi Dovid Cohen
Liver See seforim by Rabbi Cohen at www.kashrushalacha.com
- Chutei Dam (Meat and Poultry #23 - Nikkur E)
Rabbi Dovid Cohen
Chutei Dam The prohibition against eating blood Blood vessels which must be removed during nikkur 2 veins and 2 membranes Other veins Blood found after melichah Nikkur Cham What is the new practice known as nikkur cham? What issues does it
- Infant Formula (Q&A 67)
Rabbi Dovid Cohen
Infant Formula See seforim by Rabbi Cohen at www.kashrushalacha.com
- Rice (Q&A #1) (Feb 1, 2023)
Rabbi Dovid Cohen
Rice See seforim by Rabbi Cohen at www.kashrushalacha.com
- Vegetable Oil (Q&A 13)
Rabbi Dovid Cohen
Vegetable Oil. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Foods That Might Need Bishul YIsroel (Kosher Classes #66)
Rabbi Dovid Cohen
Foods that might need bishul Yisroel: Not cooked; Oleh al shulchan melachim; Edible raw. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Borders of Eretz Yisroel (Shemittah #5 - Location A)
Rabbi Dovid Cohen
Borders of Eretz Yisroel - Olei Mitzrayim & Olei Bavel - Identification of the border - Southern border - Hor Hahor Buy the book at www.kashrushalacha.com
- High School Kosher Q&A [Part 4] (Kosher Classes #63)
Rabbi Dovid Cohen
High School Kosher Q&A (4) - Shabbos, Brachos: Shabbos: Taking cholent on Friday night; Instant coffee, tea, and hot cocoa; Opening refrigerator and oven; Brachos: Wraps; Cholent; Granola bars. See seforim by Rabbi Cohen at www.kashrusha
- Grains (Q&A 61)
Rabbi Dovid Cohen
Grains See seforim by Rabbi Cohen at www.kashrushalacha.com
- Teraifos in Eggs (Eggs #9 - 86:9)
Rabbi Dovid Cohen
Teraifos in Eggs - Supermarket eggs - Experiments to resolve shailos
- Keurig Machines (Tevillas Keilim #17 - Shulchan Aruch 120:10)
Rabbi Dovid Cohen
Keurig Machines Description of the machine Reasons why tevillah might not be required 'Break' and fix by a Jew Buy the book at www.kashrushalacha.com
- Nikkur (Q&A 62)
Rabbi Dovid Cohen
Nikkur See seforim by Rabbi Cohen at www.kashrushalacha.com
- Tevillas Keilim Shorts (Kosher Anthology 56)
Rabbi Dovid Cohen
Tevillas Keilim Shorts; Glasses at reform temple; Vape pen (refillable); Ooni pizza oven; Scoring blade; Sprouting jar; Seltzer maker. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Mitzvah of Shemittah for Women (Shemittah #4 Timing D)
Rabbi Dovid Cohen
Women Leap Year Buy the book at www.kashrushalacha.com
- Steam Systems [Part 2 - Pegimah] (Bitul and Blios #7 - Shulchan Aruch 92:5-7)
Rabbi Dovid Cohen
Steam Systems (טיפת חלב) [Part 2] Pegimah Davar hapogem Chavos Da'as Nifsal mei'achilah (inedible) vs. sheloh k'derech achilah Nisrach (spoiled) vs. irev bo davar mar (bitter component added) Pesach proofs Reversibility Nosein ta'am lifgam
- Large Pots (Kashering #45 - Shulchan Aruch 452:6-7)
Rabbi Dovid Cohen
Large pots Rinse after hag'alah
- Hafrashas Challah (Q&A #6) (March 15, 2023)
Rabbi Dovid Cohen
Hafrashas Challah: See seforim by Rabbi Cohen at www.kashrushalacha.com
- Chalav Stam from Other Countries (Kosher Dairy #7 - Shulchan Aruch 115:1)
Rabbi Dovid Cohen
Chalav Stam from Other Countries Introduction Trust US Government Law on the Books Country by Country Decision Enforce their Laws
- Identifying Weak Hashgachos [Part 2] (Halachos of Insects #28 - Shulchan Aruch 84:11)
Rabbi Dovid Cohen
Identifying Weak Hashgachos (part 2) Nogeah b'davar for issur v'heter Tzorchei ha'ir If he is ne'eman Buy the book at www.kashrushalacha.com
- Light Bulb & Glow Plug (Pas Yisroel #9 - Shulchan Aruch 112:9)
Rabbi Dovid Cohen
Light bulb & glow plug Gemara Hashlachas Kisem Light bulb & glow plug Buy the book at www.kashrushalacha.com
- Duchkah D'sakinah [Part 1] (Bitul and Blios #20 - Shulchan Aruch 96:1-3)
Rabbi Dovid Cohen
Duchkah D'sakinah [Part 1] : Levels of absorption; Hadachah, gerairah, shifshuf, klipah; Knives nowadays; Cleaning methods. See seforim by Rabbi Cohen at www.kashrushalacha.com
- Sephardim (Q&A 87)
Rabbi Dovid Cohen
Sephardim See seforim by Rabbi Cohen at www.kashrushalacha.com
- Pilot Light (Bishul Yisroel #26 - Shulchan Aruch 113:7)
Rabbi Dovid Cohen
Pilot Light Buy the book at www.kashrushalacha.com
- Frying Pans (Kashering #20 - Shulchan Aruch 451:11)
Rabbi Dovid Cohen
Libun kal replacing hag'alah (source) Frying pans
- Chatzizos (Tevillas Keilim #26 - Shulchan Aruch 202:1-2)
Rabbi Dovid Cohen
Chatzizos Makpid Aino makpid Buy the book at www.kashrushalacha.com
- Pas Yisroel During Aseres Yimei Teshuvah (Kosher Classes #40)
Rabbi Dovid Cohen
Pas Yisroel During Aseres Yimei Teshuvah
- Egg On Bread (Pas Yisroel #5 - Shulchan Aruch 112:6)
Rabbi Dovid Cohen
Egg on Bread In vs. On Knishes Egg on bread French toast Buy the book at www.kashrushalacha.com
- Mechallelei Shabbos (Alcoholic Beverages #26 - 123:1)
Rabbi Dovid Cohen
Mechallelei Shabbos - Mumar - Which mechallel Shabbos is a mumar - Is the wine assur - Ger toshav Buy the book at www.kashrushalacha.com
- Insects (Kosher Classes #9)
Rabbi Dovid Cohen
Insects
- Cultured Meat (Meat and Poultry #37 - Miscellaneous B)
Rabbi Dovid Cohen
What does it take to create kosher artificial meat (a.k.a. cultured meat, cellular meat, clean meat)? What are the halachic issues to consider? Basar min hachai Shechitah Fleishig or pareve? Extension or ma'amid? Serum See the video at http
- Induction Stovetop (Q&A 51)
Rabbi Dovid Cohen
Induction Stovetop See seforim by Rabbi Cohen at www.kashrushalacha.com
- Vinegar (Q&A 36)
Rabbi Dovid Cohen
Vinegar See seforim by Rabbi Cohen at www.kashrushalacha.com