Tasting Safek Issur (Bitul and Blios #26 - Shulchan Aruch YD 98:1)
Rabbi Dovid Cohen
Tasting Safek Issur: Tasting Issur; Tasting safek issur; Boiler Condensate; Mouthwash; Toothpaste; e-Cigarette Juice. See seforim by Rabbi Cohen at www.kashrushalacha.com