Question:
Why do people say there will be “new wine” in heaven?

Answer:
A few brief thoughts on the subject of “new wine in heaven.” Psalm 104:15 refers to, “Wine that maketh glad the heart of man.” However, man has used it to excess and has therefore brought dishonor upon himself.

Of our Saviour it was said, “Behold a man gluttonous, and a winebibber,” (Matthew 11:19), as He pursued the natural course of life on earth.
Drawing near to the hour of His crucifixion, Jesus instituted what is called “The Lord’s Supper,” using wine as the symbol of His blood, and saying to His disciples, “Drink ye all of it; for this is My blood of the new testament, which is shed for many for the remission of sins” (Matthew 26:27,28). With the wine speaking of His coming time of suffering, which would validate the New Testament, the Saviour could not partake of that which gave earthly joy until such time as He returned in His full glory to reign over His Father’s kingdom. To unfold this truth, He said, “I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in My Father’s kingdom” (Matthew 26:29).
The Lord has long looked forward to the time when Satan’s dominion over the earth shall be ended, and He, the rightful Ruler established, heralding a new age and relationship. Then wine can be partaken with its true significance as a “joy giver.””New with you in my Father’s kingdom” does not speak of the age of the wine, but of a new relationship which will then exist and, I believe, the place will be on earth during the Millennium and not in heaven.