Laws of kosher as they apply in contemporary times

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.kashrushalacha.com

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

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 See seforim by Rabbi Cohen at www.kashrushalacha.com

Beracha on Changed Food - Part 1: Terimah; Pas Dochen; Corn. See seforim by Rabbi Cohen at www.kashrushalacha.com

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

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

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: Maharik; Pri Chadash.See seforim by Rabbi Cohen at www.kashrushalacha.com

Shabbos Mode See seforim by Rabbi Cohen at www.kashrushalacha.com

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 See seforim by Rabbi Cohen at www.kashrushalacha.com

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 See seforim by Rabbi Cohen at www.kashrushalacha.com

Medical Advocates: Your turf; Kashrus knowledge; Placing patients. See seforim by Rabbi Cohen at www.kashrushalacha.com

Matzah Shemurah See seforim by Rabbi Cohen at www.kashrushalacha.com

Homeopathic Remedies See seforim by Rabbi Cohen at www.kashrushalacha.com

Fruit Trees See seforim by Rabbi Cohen at www.kashrushalacha.com

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 [Arlah Shorts - Part 2]: Growth; Status; See seforim by Rabbi Cohen at www.kashrushalacha.com

Davar Charif See seforim by Rabbi Cohen at www.kashrushalacha.com

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

Arlah Shorts - Part 1:Avocado;Blueberries (highbush, lowbush/wild, bilberries);Pomegranates;Toiletries.See seforim by Rabbi Cohen at www.kashrushalacha.com

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

High School Q&A 2025: Vaping; Dairy and DE; Drinks; Hechsherim. See seforim by Rabbi Cohen at www.kashrushalacha.com

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

Enzymes: What they are; Examples; Animal-based enzymes; Dried out like wood (יבש כעץ); Inedible and se'or; The teshuvos; Davar Hama'amid. See seforim by Rabbi Cohen at www.kashrushalacha.com

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

Bishul Yisroel Q&A: Remote lighting; Sephardim; Pilot light; Oleh al shulchan melachim; Non-Shomer Shabbos; Potato chips; Tuna fish; Eggs; Beans; Sushi; Corn. See seforim by Rabbi Cohen at www.kashrushalacha.com

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

Warming Food on Shabbos: Hot box; Hot plate (plata); Empty pan; Non-Jews; Shabbos Chef. See seforim by Rabbi Cohen at www.kashrushalacha.com