1)Can I add acid blend at any time?
2)What does acid blend do?
3)How do I know if I have too much/too little acid blend?
1. Yes, you can add it at anytime. Later might be better because you can add it to taste instead of simply following the recipe.
2. Acid balances sweetness and alcohol flavor. It make the wine more tart and lively. Wine without enough acid will seem flat and dead.
3. I go by what tastes good to me. Some aim for a specific pH and titrable acidity. Go with what works for you.
Planning:Choke cherry wine, brown ale.
Bulk Aging: Oud bruin with elderberries, Brett Saison, ordinary bitter.
Bottled: Oud Bruin, cider, black raspberry mead, Elderberry wine.