I make two diffferent elderberry wines, one is a strong wine, using approx 3lb of berries per gallon of wine, and the light uses 1lb per gallon. The Strong takes a couple of years to age before you can drink it. Whereas the light has a very short shelf life (<3 months), but is also ready to drink very quickly. If you make it in September it's ready to drink by Christmas. Needing ⅓rd the amount of elderberries, I find myself increasingly making the light wine. To allow for a constant stock, I freeze the berries (destalked), in 3lb bags, so I can make another batch every 3 months...
Recipes available if interested.
J