When evaluating Chamomile Tea, the primary indicator of quality is the wholeness of the flower heads. High-grade chamomile should consist of intact yellow centers (florets) and white petals, with minimal 'dust' or broken stems. The essential oil content, specifically Chamazulene, is a critical chemical marker for potency and should be verified via lab reports. Additionally, the aroma should be strong, sweet, and apple-like; a musty or hay-like smell often indicates old stock or poor drying processes.