It was out of this world. It was not fermented. The wine represented our sinless Saviour. Jesus' blood was pure. The Grape Juice was pure.
Fermentation represents impurity.
Fermented wine is alcohol and should not be tasted. This is the fountain of every blessing. Notice that the precious blood of God's Son must be poured out before it can save. This first day of Jesus ministry pointed to the last day when He would die and His blood would be spilled for every sinner. Jesus ministry begins as it ended.