Almost instant fermentation! LOL

I just made a 5 gallon "Welch's Grape Juice Wine" and added used grape skins from my Classic Winery Series Cab I just racked. From one to another. That plus a full dose of proofed Lalvin 71B-1122 and I have air bubbles 30 minutes later in the airlock! LOL.

WELCH’S CONCORD WINE
Batch II

Started: January 6, 2009
Starting Gravity: 1.093
Yeast: Lalvin 71B-1122

Notes: Added used Cabernet skins from Cellar Classic Winery Kit, one pound of chopped raisins, one ounce of oak chips, 5 pounds of white sugar. 12 cans of 100% grape juice concentrate and enough spring water to make a total of 5 gallons.

any acid blend, or are you going to do that post-fermentation?

Probably wasted a package of yeast. Dumped in one hel good starter. The yeast that is fermenting is whatever was in the Cabernet skins