Identifying Ceylon cinnamon involves examining appearance, texture, taste, and origin. Ceylon cinnamon sticks are thin, delicate, and crush easily, with a light tan color. The texture is fragile, and the taste is sweet with citrus undertones. Look for labels specifying "Ceylon cinnamon" or "Cinnamomum verum." In contrast, Cassia cinnamon sticks are thicker, harder, and darker in color, with a coarser texture and a stronger, spicier taste. Pay attention to these characteristics when purchasing cinnamon to ensure you get the type you desire, and consider buying from reputable sources that provide clear information on the cinnamon's origin.