AG imperial stout with OG of 1.091. Stopped at 1.030. Mash was 154F for 90 minutes. I was looking to finish at around 1.022. Yeast was WLP001 with a 2 liter starter.
I have a packet of Red Star Pasteur Champagne yeast. Can I add that and will the fermentation continue? Are there other options? I also have a packet of Notty and S-05.