How long to mature a grape wine?

[Duxuk]

It's probably a "how long is a piece of string?" question but I've made a sparkling wine from Lancashire grown grapes. I crushed the red grapes and got pink juice at 1.085 OG. I've fermented with a champagne yeast, put it in champagne bottles and primed. I only have 2 bottles so I want to drink them when they're good.
Realistically, when will they reach a reasonable point to drink? They are currently in the secondary fermentation stage.

 

[Dutto]

Two things will happen:

1. You will drink one bottle before it matures to perfection.
2. You will drink the second bottle after it has started to go off.

The moral is "You should have brewed more wine!"

 

[tonyhibbett]

Champagne makers mature the base wine for a year even before bottle fermentation. I recently opened a bottle of my 2016 elderflower champagne and it was significantly better than the one I opened last year. Which variety of grape do you have?

 

[Duxuk]

I don't know the grape variety. It's not my vine. This is the first time it has produced grapes big enough to do anything with. The clarity of the 2 bottles is now amazing without any finings. They've had just over 2 weeks of secondary fermentation.