Question:
How high does the alcohol concentration of the four cups of wine drunk on the seder Pesach have to be?
Answer:
There is no specific level of alcohol required for the Four Cups.
A person should optimally use wine for the Four Cups, and wine can also be “light wine” whose alcohol content is approximately 4%.
Wine is defined as an alcoholic drink that is recognized as wine, and this is the optimal for the Four Cups.
Best wishes.