Non-Kosher Materials [Part 1] (Hashgachah Practicum #8 - Ingredients B)
Rabbi Dovid Cohen
Non-Kosher Materials - Part 1 Scope; Meat and Poultry; Oils, fats, glycerin, fatty acids, gelatin; Fish (scales, red roe, salmon, isinglass); Insects; Dairy products (chalav akum, gevinas akum, casein, lactose). See seforim by Rabbi Cohen at www.kashrushalacha.com