From Luke 5:36 [NIV]
Jesus said this, too: "No one tears a patch from a new garment and sews it on an old one. If he does, he will have torn the new garment, and the patch from the new will not match the old. 37 And no one pours new wine into old wineskins. If he does, the new wine will burst the skins, the wine will run out and the wineskins will be ruined. 38 No, new wine must be poured into new wineskins. 39 And no one after drinking old wine wants the new, for he says, 'The old is better.' "
New wine takes time to age but if I'm not mistaken, every old wineskin full of old wine was once a new wineskin full of new wine but to reach it's full potential, under the eye of experienced wine-makers (or at least those willing to learn), it needs time to age.