Ain Habaluah Yotzeh (Bitul and Blios #10 - Shulchan Aruch YD 92:8)
Rabbi Dovid Cohen
אין הבלוע יוצא מחתיכה לחתיכה בלא רוטב Food to food; Utensil to utensil; Details; Industrial examples; Stovetop grapes; Induction stovetop. See seforim by Rabbi Cohen at www.kashrushalacha.com