I brewed a high gravity (1.078) biere de garde and after two weeks in the primary the gravity has only dropped16 points. This recipe has 12 oz. of sugar and I usually see an explosive fermentation, but that never occurred. I did all the usual things for a high gravity beer: 2 qt starter, aerated with a stone, proper temp (68-70). So, I'm kind of flummoxed. I brought the carboy upstairs (temp 72), stirred and rocked it, and after 24 hrs. not seeing much of anything (although it's chugging along slowly). Would adding another round of a neutral yeast help? Should I make another starter for that?
Give me your ideas, please.