It depends on what the ABV is now. Yeast don't like high ABV environments, so it might be a very hard ferment to get started, if it will even go. If it's a low ABV now, you might be able to get it to ferment. If you try, you'll want to use staggered nutrient additions to keep the yeast happy, as well as a yeast starter to start with.
Check the alcohol tolerance of your chosen yeast strain. You don't want to try if you're already near the tolerance level. You'd probably have to use something like champagne yeast if the other yeast strains have a low alcohol tolerance.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
|