The first step is to look at the appearance of the wine bottle

· Check whether the label printing on the wine bottle is clear? Is it counterfeiting or reprinting?

· Are there any abnormalities on the lid of the wine bottle? Are there any signs of being opened?

The second step is to look at the wine liquid

· Check whether the color of the wine is natural?

· Check whether there are any unknown suspended solids on the wine

· The color of the wine will look turbid when the quality of the wine deteriorates

The third step is to look at the label on the wine cork

· Open the wine bottle and see if the text on the wooden stopper is the same as the text on the bottle label.

The fourth step, smell the wine

· If the wine has a pungent smell like nail polish, it has gone bad

The fifth step, taste the wine The taste of the wine

· When the wine passes through the throat after the first sip of wine, the normal wine is smooth, while the problem wine is irritating.

· It is abnormal if the smell remaining in the mouth after swallowing alcohol has a chemical smell or a foul smell.

· Good wine should be refreshing when drunk.