Making tea out of grape leaves -when to pick the leaves?

I have a question for you regarding make tea out of grape leaves. I want to make some, but dont know when the best time to pick the leaves it.I know i

I have a question for you regarding make tea out of grape leaves. I want to make some, but don't know when the best time to pick the leaves it.

I know it's made in Greece and the USA, too, but not in Georgia, and unfortunately I haven't been able to find the answer here.

or:I have a question for you regarding make tea out of grape leaves. I want to make some, but don't know when the best time to pick the leaves it.I know it's made in Greece and the USA, too, but not in Georgia, and unfortunately I haven't been able to find the answer here.

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