Kashrus Halacha

Kashering Shorts [Part 2]: High Altitudes; AccuSteam Griddle; Induction Cooktop; Kashering after kitnios; See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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: 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]: Coffee decaffeination; 5-gallon water jugs; Mashgiach visiting bakery on Pesach. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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]: 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]: Edibility; Three categories; Ach'shvei; Vitamins; Gelcaps; Liquids and chewables. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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

B'lios Shorts: Superheated steam; Reaction in tote; Double sink; Double oven. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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): How vinegar is made; Double fermentation; Equipment; Kashrus Concerns. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

Non-Dairy Creamer: Sodium Caseinate; Bitul; Second chance. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

Berachos on Berries: Blueberries; Cranberries; Strawberries; Raspberries and Blackberries; Acai Berries; Currants. See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com

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