Kashrus Halacha

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: Tofeach or Al Minas Lehatfiach? Leratzon; Safek Tumah. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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: Blintzes; Dosa; Bulgur; French Fries; Convection Ovens; Breaded Fish; Choleh. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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]; 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]: 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.kashru...

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]: Yotzeh v'nichnas; Home setting; Factories; Uber Eats; Equipment. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

10 Animals [Part 1]; Introduction/Goals; Ambiguity; Species; Horns, Antlers, and Ossicones; See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

Seals [Part 1]: Benefit; Seals/Simanim; One or two? Locks; Effective seals; See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

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]: Keeping a kilayim tree; Bracha on blossoming tree; Shehechiyanu on Rosh Hashanah; Microbial fermentation. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

Kilayim: Basics; Species/Minim; Shehechiyanu; Grafting vs Crossbreeding. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

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 / בהמה שהורה בו חכם: Sevara vs. Mesorah; Bitul; Who; Applications. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

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): 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): 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]: 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: 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: 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: 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]: Labriute Meals (FRH/MRE); Soda Stream (Sypholux); Metal Ice Cubes. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠

Flavors See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com