They seem very concentrated - if that's fluid ounces, it'd be 1.5 gallons of concentrate. Most commercial wine kits come with anywhere between 9 and 15 liters of concentrate (and some of the most expensive ones come with a full six gallons of unconcentrated juice).
The Fiesty(sic) Goat Brewery est. 2007 & Clusterfuggle Experimental Ales est. 2009
Planned: sLambic II, Flanders Red II, Orange Blossom Mead, Fat Man Porter
Primary:sLambic I, Janet's Brown
Secondary: Toasted Caramel Port, Flanders Red
Kegged: Hefeweizen, Centurion Falcon IPA< Dark Saison
2013 dump volume: ~2 gallons