I'm a first time wine maker... and decided to try the "easy" one. The Welch's Concord grape concentrate wine. I used the recipe found on this forum, and followed the recipe precisely. My question is this.... I waited the 5 days and have now air-locked the wine (yesterday). Should I see any blurping in the air-lock?? 'Cause I'm not! =) I do have about 1/4 an inch of foam at the top of the wine... but just wondering if all is well.