If the cup is not a type, must we use wine and not simply "the fruit of the vine"?

If the cup is not a type, must we use wine and not simply "the fruit of the vine"?

"Fruit of the vine" (Luke 22:18) is the only description we have of the contents of the cup. The grape harvest was in the Fall. The Passover came in the Spring. Without refrigeration or canning, "the fruit of the vine" began to ferment by Passover. This makes it impossible to insist that that contents of the cup cannot be fermented.

The contents are not typical, so we cannot prescribe the degree of fermentation for the contents of the cup. In fact, because it isnt typical, we cannot require that the contents must be fermented.

D. Oliver