Kashrus Halacha
Laws of kosher as they apply in contemporary times, hosted by Rabbi Dovid Cohen of cRc Kosher.
Episodes
![Tzitzis [Part 4] Strings (Kosher Anthology 67)](https://d3t3ozftmdmh3i.cloudfront.net/staging/podcast_uploaded_nologo/3167691/3167691-1743626442546-0a59cfda913c9.jpg)
Tzitzis [Part 4] Strings (Kosher Anthology 67)
Tzitzis [Part 4] Strings: Lishmah (what, who, how); Physical properties; Strings onto beged (lishmah, wrapping); Techeles. See seforim by Rabbi Cohen at www.kashrushalacha.com
Avodah Zara (Kosher Anthology 68)
Avodah Zara: Indian restaurants; Holy basil; L-cysteine; Greek gods; Trappist beer. See seforim by Rabbi Cohen at www.kashrushalacha.com
Tzitzis [Part 3] Garment Materials (Kosher Anthology 66)
Tzitzis [Part 3] Garment Materials: Materials; Children's tzitzis; T-shirt tzitzis; Sleeves. See seforim by Rabbi Cohen at www.kashrushalacha.com
Tzitzis [Part 2] Holes for Strings (Kosher Anthology 65)
Tzitzis [Part 2] Holes for Strings: Distance from edge; Number of holes.See seforim by Rabbi Cohen at www.kashrushalacha.com
Tzitzis [Part 1] Garment Size (Kosher Anthology 64)
Tzitzis [Part 1] - Garment Size: Length; Width; Neck hole. See seforim by Rabbi Cohen at www.kashrushalacha.com
Perutah Chamurah (Kosher Anthology 63)
Perutah Chamurah: Pidyon ma'aser sheini; The coin; Perutah chamurah (what, why); Complications; Useable currency; Double transfer.See seforim by Rabbi Cohen at www.kashrushalacha.com
The Three Weeks (Kosher Anthology 62)
The Three Weeks: Timing; Simcha and Music (events, dancing, music, laundry, renovations); Foods and beverages. See seforim by Rabbi Cohen at www.kashrushalacha.com
Rice Products (Kosher Anthology 61)
Rice Products and Bishul Yisroel: Rice pudding; Crisped rice; Sake. See seforim by Rabbi Cohen at www.kashrushalacha.com
Borei Pri Hagafen (Kosher Anthology 60)
Borei Pri Hagafen: Adding water to water or grape juice (202 vs 204, Olas Tamid vs Pri Megadim, Applications); Changed juice (vinegar, brandy, ices); Currants. See seforim by Rabbi Cohen at www.kashrushalacha.com
Grapes and Raisins (Kosher Anthology 59)
Grapes and Raisins: Seedless grapes; Golden raisins; Grape drying oil; Mevushal. See seforim by Rabbi Cohen at www.kashrushalacha.com
Out of Techum (Kosher Anthology 58)
Out of techum: Flight (airport terminal); Bus (kavod habrios); Delivery. See seforim by Rabbi Cohen at www.kashrushalacha.com
Techum (Kosher Anthology 57)
Techum: 4 Amos; Surrounded by walls; City; Squaring of the city; 2,000 Amos; Possessions. See seforim by Rabbi Cohen at www.kashrushalacha.com
Tevillas Keilim Shorts (Kosher Anthology 56)
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
Xanthan Gum for Pesach [Part 2] (Kosher Anthology 55)
Xanthan Gum for Pesach - Part 2: Efshar l'sochto; Mixed liquids; Kovush; Bitul b'shishim; Bitul issur l'chatchilah; Davar hama'amid; Certification. See seforim by Rabbi Cohen at www.kashrushalacha.com
Xanthan Gum for Pesach [Part 1] (Kosher Anthology 54)
Xanthan Gum for Pesach [Part 1]: Production; Inedible; Taste; Poisonous. See seforim by Rabbi Cohen at www.kashrushalacha.com
Europe vs USA (Kosher Classes 75)
Kosher Food in Europe vs. America: Ingredients (soda); Equipment (fruit juice, coffee); Process (chalav stam). See seforim by Rabbi Cohen at www.kashrushalacha.com
Shavers (Kosher Anthology 53)
Electric Shavers: Basic halachos; Razors, scissors, and misprayim k'ein ta'ar; Close shave; On the skin; Lift and cut; Sharpness. See seforim by Rabbi Cohen at www.kashrushalacha.com
Pesach Shorts [Part 2] (Kosher Anthology 52)
Pesach Shorts [Part 2]: Alfalfa (kitnios, sodium copper chlorophyllin); Fenugreek; Chametz gamur (mechiras chametz). See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering Shorts [Part 2] (Kosher Anthology 51)
Kashering Shorts [Part 2]: High Altitudes; AccuSteam Griddle; Induction Cooktop; Kashering after kitnios; See seforim by Rabbi Cohen at www.kashrushalacha.com
Sous Vide (Kosher Anthology 50)
Sous Vide: How it works; Kashering; Shabbos; Shehiyah (raw, garuf v'katum, passably edible); Chazarah (flavor transfer, no barrier, cooking vs. heating). See seforim by Rabbi Cohen at www.kashrushalacha.com
Pesach Update 2026 (Pesach #47)
Pesach Update: Seltzer; Toothpaste, mouthwash, lipstick; Mouse traps; Water coolers and dispensers (Noam); Vinegar-based cleansers; Corelle. See Rabbi Cohen's seforim at www.kashrushalacha.com
Pesach Shorts [Part 1] (Kosher Anthology 49)
Pesach Shorts [Part 1]: Coffee decaffeination; 5-gallon water jugs; Mashgiach visiting bakery on Pesach. See seforim by Rabbi Cohen at www.kashrushalacha.com
Stam Keilim for Pesach (Kosher Anthology 48)
Stam Keilim For Pesach: Stam keilim ainum b'nei yoman; Shea butter; Factories.See seforim by Rabbi Cohen at www.kashrushalacha.com
Medicine [Part 2] (Kosher Anthology 47)
Medicine [Part 2]: Ingredients; Levels of issur; Bitul; Flavors; Four categories; Severity of illness; Refuah yeduah; Substitutes; Decision tree. See seforim by Rabbi Cohen at www.kashrushalacha.com
Medicine [Part 1] (Kosher Anthology 46)
Medicine [Part 1]: Edibility; Three categories; Ach'shvei; Vitamins; Gelcaps; Liquids and chewables. See seforim by Rabbi Cohen at www.kashrushalacha.com
Coffee on Shabbos (Kosher Anthology 45)
Coffee on Shabbos: Freshly Brewed; Instant Coffee (freeze dried vs spray dried); Butter; Salt; Additives; Instant coffee with fresh coffee grinds; Liquid coffee concentrate. See seforim by Rabbi Cohen at www.kashrushalacha.com
Blios Shorts (Kosher Anthology 44)
B'lios Shorts: Superheated steam; Reaction in tote; Double sink; Double oven. See seforim by Rabbi Cohen at www.kashrushalacha.com
Vinegar [Part 2] (Kosher Anthology 43)
Vinegar (Part 2): Charif; Stam yayin - bitul b'shishah, depth of absorption; Chametz; Kashering - odor, kli sheini, kovush; Other. See seforim by Rabbi Cohen at www.kashrushalacha.com
Vinegar [Part 1] (Kosher Anthology 42)
Vinegar (Part 1): How vinegar is made; Double fermentation; Equipment; Kashrus Concerns. See seforim by Rabbi Cohen at www.kashrushalacha.com
Non-Dairy Creamer (Kosher Anthology 41)
Non-Dairy Creamer: Sodium Caseinate; Bitul; Second chance. See seforim by Rabbi Cohen at www.kashrushalacha.com
Berachos on Berries (Kosher Anthology 40)
Berachos on Berries: Blueberries; Cranberries; Strawberries; Raspberries and Blackberries; Acai Berries; Currants. See seforim by Rabbi Cohen at www.kashrushalacha.com
Shevisas Keilim (Kosher Anthology 39)
Shevisas Keilim (שביתת כלים): Timer; Starting melacha (watermill); Pizza oven for Motzai Shabbos; Fax machine; Time Zones; Vending machine. See seforim by Rabbi Cohen at www.kashrushalacha.com
Tempering of Wheat - Bonus Material (Kosher Anthology 38)
Tempering of Wheat - Bonus Material: Tofeach or Al Minas Lehatfiach? Leratzon; Safek Tumah. See seforim by Rabbi Cohen at www.kashrushalacha.com
Tempering of Wheat (Kosher Anthology 37)
Tempering of Wheat: Huchshar lekabel tumah (הוכשר לקבל טומאה); Tempering; Tofeach (טופח); Wetness; Safek; Pesach. See seforim by Rabbi Cohen at www.kashrushalacha.com
Bishul Yisroel Shorts (Kosher Anthology 36)
Bishul Yisroel Shorts: Blintzes; Dosa; Bulgur; French Fries; Convection Ovens; Breaded Fish; Choleh. See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 5] (Kosher Anthology 35)
10 Animals [Part 5]: Identifying Chayos; Domestication; Wild beheimos; Horn types; Halachic differences. See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 4] (Kosher Anthology 34)
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
10 Animals [Part 3] (Kosher Anthology 33)
10 Animals [Part 3]: Ayal (Red Deer) (elk, moose, reindeer/caribou); Tzvi (Gazelle) (deer, grand branched antlers, similarity to goat, gestational period) (antelopes, dukier, generuk, impala); Yachmor (Roe Deer) (dainty antlers) (axis deer, muntjac, pudu); Ako (Ibex) (hapax legomena, pashut, similarity to sheep, kudu, female sheep). See seforim by Rabbi Cohen at www.
10 Animals [Part 2] (Kosher Anthology 32)
10 Animals [Part 2]: Cow (Shor); Sheep (Seh Kesavim) (horns, wool) (Racka, Mouflons, Urials) ; Goats (Seh Izim) (shofar). See seforim by Rabbi Cohen at www.kashrushalacha.com
Seals [Part 2] (Kosher Anthology 31)
Seals [Part 2]: Yotzeh v'nichnas; Home setting; Factories; Uber Eats; Equipment. See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 1] (Kosher Anthology 30)
10 Animals [Part 1]; Introduction/Goals; Ambiguity; Species; Horns, Antlers, and Ossicones; See seforim by Rabbi Cohen at www.kashrushalacha.com
Seals [Part 1] (Kosher Anthology 29)
Seals [Part 1]: Benefit; Seals/Simanim; One or two? Locks; Effective seals; See seforim by Rabbi Cohen at www.kashrushalacha.com
Sourdough (Kosher Anthology 28)
Sourdough: Description; Starter purchased from bakery; Was there hafrashah; Status of starter - issah ha'asuyah lechalek (עיסה העשויה לחלק), נחתום/baker.See seforim by Rabbi Cohen at www.kashrushalacha.com
Kilayim [Part 2] (Kosher Anthology 27)
Kilayim [Part 2]: Keeping a kilayim tree; Bracha on blossoming tree; Shehechiyanu on Rosh Hashanah; Microbial fermentation. See seforim by Rabbi Cohen at www.kashrushalacha.com
Kilayim [Part 1] (Kosher Anthology 26)
Kilayim: Basics; Species/Minim; Shehechiyanu; Grafting vs Crossbreeding.See seforim by Rabbi Cohen at www.kashrushalacha.com
Jordan (Kosher Anthology 25)
Jordan: Ever Hayarden (עבר הירדן); Terumah, Ma'aser, Arlah; South; East; Yom Tov Sheini (Rambam and Ritva, Ever HaYarden, Eilat). See seforim by Rabbi Cohen at www.kashrushalacha.com
Beheimah Shehorah Bo Chacham (Kosher Anthology 24)
Beheimah Shehorah Bo Chacham / בהמה שהורה בו חכם: Sevara vs. Mesorah; Bitul; Who; Applications. See seforim by Rabbi Cohen at www.kashrushalacha.com
Edible Raw (Kosher Anthology 23)
Edible Raw (Bishul Akum): Milk; Corn; Cranberries; Maple Syrup; Mushrooms; Chestnuts; Fish (sushi). See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains [Part 3] (Kosher Anthology 22)
Five Grains (Part 3): Bracha Acharonah; Kol Sheyesh Bo (licorice, shnitzel, fish sticks); Bran; Vital Wheat Gluten (seitan); Wheat Starch (Molino flour); See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains [Part 2] (Kosher Anthology 21)
Five Grains - Part 2): Ma'asei Kedairah; Bran removed; Stuck together (Rambam, Rabbeinu Yonah); Pearled barley; Farro; Granola Bars. See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains [Part 1] (Kosher Anthology 20)
Five Grains [Part 1]: Processing; Four Parts; Oats, barley, wheat, spelt, rye; Four berachos - ha'adamah, shehakol, hamotzi, mezonos; Wheat germ; Ma'asei kedairah. See seforim by Rabbi Cohen at www.kashrushalacha.com
Food Service Hashgachah (Kosher Anthology 19)
Food Service Hashgachah: The Va’ad – Standards, Oversight; Roles – Mashgiach (Ingredients, Bishul Yisroel, Vegetables, Other), Community Rabbi; Small Community Hashgachos – Locations, Shabbos, Partial Certification, Finances, Policies.See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering Shorts [Part 1] (Kosher Anthology 18)
Kashering Shorts: Corelle (absorption, tevillah); Milui v'irui on Shabbos; Chafing dish food pans; Countertops. See seforim by Rabbi Cohen at www.kashrushalacha.com
Science and Kashrus (Kosher Classes 74)
Science and Kashrus: Animal fat and vegetable oil (glycerin, fatty acids); Vape juice, e-cigarettes, and flavors; Glucose; Medicine; Vacuum and pressure. See seforim by Rabbi Cohen at www.kashrushalacha.com
Small Kitchen Items on Shabbos [Part 1] (Kosher Anthology 17)
Small Kitchen Items on Shabbos [Part 1]: Labriute Meals (FRH/MRE); Soda Stream (Sypholux); Metal Ice Cubes. See seforim by Rabbi Cohen at www.kashrushalacha.com
Flavors (Q&A 100)
Flavors See seforim by Rabbi Cohen at www.kashrushalacha.com
Beracha on Changed Food [Part 2] (Kosher Anthology 16)
Beracha on Changed Food - Part 2: Tomato paste; Peanut butter; Chocolate; Sugar; Soy; Orange Juice; Recited ha'eitz or ha'adamah. See seforim by Rabbi Cohen at www.kashrushalacha.com
Grill (Q&A 99)
Grill See seforim by Rabbi Cohen at www.kashrushalacha.com
Beracha on Changed Food [Part 1] (Kosher Anthology 15)
Beracha on Changed Food - Part 1: Terimah; Pas Dochen; Corn. See seforim by Rabbi Cohen at www.kashrushalacha.com
Berries (Q&A 98)
Berries See seforim by Rabbi Cohen at www.kashrushalacha.com
Chocolate (Q&A 97)
Chocolate See seforim by Rabbi Cohen at www.kashrushalacha.com
Supermarket Shopping After Pesach [Part 2] (Kosher Anthology 14)
Supermarket Shopping After Pesach [Part 2]: Safek chametz she'avar alav haPesach; Mechiras chametz; Inventory turnover rate; Days on Hand; Groceries and spirits; When one may purchase chametz. See seforim by Rabbi Cohen at www.kashrushalacha.com
Minhag Against Halacha (Kosher Classes 73)
Minhag Against Halacha: Maharik; Pri Chadash.See seforim by Rabbi Cohen at www.kashrushalacha.com
Shabbos Mode (Q&A 96)
Shabbos Mode See seforim by Rabbi Cohen at www.kashrushalacha.com
Grains for Matzah [Part 2] (Kosher Anthology 13)
Grains for Matzah - Part 2: Controversy ; Common practice; Points of contention - fully dry, mechanical drying; Avoidance; Acceptance - Me'il Tzedakah, Sh'murah from grinding; Minhag against halacha. See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering (Q&A 95)
Kashering See seforim by Rabbi Cohen at www.kashrushalacha.com
Grains for Matzah [Part 1] (Kosher Anthology 12)
Grains for Matzah [Part 1]: Chimutz while attached to the ground; Rashba; Wheat growth (color, moisture); BBCH Stages 89 and 92; Harvest; Understanding Rashba. See seforim by Rabbi Cohen at www.kashrushalacha.com
Dried Fruit (Q&A 94)
Dried Fruit See seforim by Rabbi Cohen at www.kashrushalacha.com
Medical Advocates (Kosher Classes 72)
Medical Advocates: Your turf; Kashrus knowledge; Placing patients. See seforim by Rabbi Cohen at www.kashrushalacha.com
Matzah Shemurah (Q&A 93)
Matzah Shemurah See seforim by Rabbi Cohen at www.kashrushalacha.com
Homeopathic Remedies (Q&A 92)
Homeopathic Remedies See seforim by Rabbi Cohen at www.kashrushalacha.com
Fruit Trees (Q&A 91)
Fruit Trees See seforim by Rabbi Cohen at www.kashrushalacha.com
Amirah L'akum (Kosher Anthology 11)
Amirah L'akum: Melacha - machlokes, psik reishah, urn; For Jews - wash dishes, adatah d'nafshey, Jew's home, write orders, convection oven, industrial, eruv; Shabbos or Yom Tov - Early Shabbos, bein hashmashos, open on Shabbos.See seforim by Rabbi Cohen at www.kashrushalacha.com
Pineapple (Kosher Anthology 10)
Pineapple [Arlah Shorts - Part 2]: Growth; Status; See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Charif (Q&A 90)
Davar Charif
See seforim by Rabbi Cohen at www.kashrushalacha.com
Grapes (Q&A 89)
Grapes
See seforim by Rabbi Cohen at www.kashrushalacha.com
Arlah Shorts [Part 1] (Kosher Anthology 9)
Arlah Shorts - Part 1: Avocado; Blueberries (highbush, lowbush/wild, bilberries); Pomegranates; Toiletries.See seforim by Rabbi Cohen at www.kashrushalacha.com
Poultry (Q&A 88)
Poultry
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Q&A 2025 (Kosher Classes 71)
High School Q&A 2025:
Vaping;
Dairy and DE;
Drinks;
Hechsherim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Sephardim (Q&A 87)
Sephardim
See seforim by Rabbi Cohen at www.kashrushalacha.com
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