Been a little lazy for the past 2 years. A couple of weeks ago, I brewed 3 all-grain 10 gallon batches of beer. I brewed a 2-Hearted clone, Blueberry and a chocolate/coffee Porter/Stout. After Primary fermentation (which I ran a little over because the yeast was a little over a year old), I have racked all to a secondary. At that time I dry hopped the 2-Hearted, added blueberries to the Blueberry and cocoa hips/cold brewed coffee to the Porter/Stout. The question is, how long can I safely allow each brew to sit in the secondary?? AND in aging the Porter/Stout, do I just leave it in the secondary or keg it and just let it age in the keg and for how long??