1. Identification of hyaluronic acid. The transparent paper with real cigarette appearance has high transparency, the plastic film is thin and bright, the feel is smooth, and the film and the paperboard inside are very flat; The transparent paper of fake cigarettes is poor, the transparency and smoothness are not enough, the inner wrapping paper is uneven, and the feel is dull.
2. Color recognition. The surface of the real cigarette case is shiny, evenly painted and bright with gold plating; Fake cigarettes generally have dim bronzing, uneven coloring, poor surface gloss and blurred printing fonts.
3. Identification of cut tobacco. Real tobacco cut tobacco has natural color, good luster and strong oil feeling; Fake cut tobacco has poor quality, dark color and rough surface.
4. Flammability identification. True smoke has good combustibility and does not turn off the flame; Fake cigarettes have poor combustibility and flameout.