From October 18th, 1987, the trademark of "Phoenix Brand" was changed to "Xifeng Brand"; 65-degree wine is not marked with 6 degrees on the red trademark, and 55-degree wine is not marked with 39 degrees on the white trademark.

1. Identification from the bottle cap: The bottle cap of real xifeng liquor is an aluminum twist-off anti-theft cover.

2. Identification from the trademark: The trademark logo of the real xifeng liquor is embossed with gold stamping, and the pattern and handwriting are clear.

3. Identification from the wine bottle: The bottom of the bottle used by real wine since January 1, 1987 is marked with the word "smoke".

4. From the taste identification, the main aroma components of xifeng liquor are ethanol, ethyl acetate and amyl alcohol.