Hello

A friend just asked this question a few days ago

He bought Great Wall wine and said that this happened

I have never heard of the Changyu wine you mentioned

I think there are two reasons why it turns blue

The first is that the water you use at home is Weakly alkaline because sometimes the pH will affect the acid-base balance of the wine and turn it into light blue

The second is that there is a problem with the wine itself, it may be fake wine because wine blended with three essences sometimes turns into The blue wine may even turn black

If it is new wine, it will turn light blue when exposed to water. I personally think it is okay

But if it is fake wine, it is definitely abnormal

Anyway, I have never heard of Changyu Cultural Museum

I hope I can help you with your question