Can Havdalah be recited over coffee or beer?

This source-based Torah study examines the question: Can Havdalah be recited over coffee or beer? The canonical Hebrew article develops the issue through the weekly Torah portion and the sources cited there. This localized discovery layer preserves the question and the source identity; it does not add any new halakhic, medical, legal, scientific, historical, theological, or empirical ruling or claim beyond the canonical Hebrew source.