I have 4.5 gallons of dry blueberry wine (~15% alc) that is a little thin on taste. Has anyone ever simmered down the R.W. Knudsen 'Just Blueberry' juice to add some flavor as a f pac? How much should I add? I bought 3 QTs this afternoon... I added campden and sorbate yesterday, all ready to go, I believe. Was kind of planning to simmer down 2QTs by 60%, add a small touch of sugar, and rack it all together.