I've done some searches and read but still not quite sure what to do. Here is my dilemma. I currently have 3 6.5 gallon carboy's in secondary fermentation. Just started secondary fermentation less than a week ago and its still going strong. The wine is concord grape. The level of wine in the carboy's now is about 4 inches from the bung. I plan on racking in about another 3 weeks when fermentation is finished. I'm sure when I rack I'll need to top up to prevent oxidation and put the level near the bung. I messed up and did'nt save any grapes for a f-pack. I also made the newbie mistake of probably diluting flavor with water in the primary stages. So to keep the concord flavor I was hoping to top up with concord grape juice. How will this work out? I know I should sorbate first but how exactly would you go about this? How do I add sorbate to a carboy when it finishes fermentation? Then how long does the sorbate need before I can add the concentrate? If I added sorbate while racking it would be in a new carboy but be too low and risk oxidation right? Hope you understand where I'm going with this. Any help is greatly apprec.
John
John