I used 1056. The tolerance there is 11%, so it technically can not take it to the goal of 12-13%. It took it a week to get 10%, so it is a very strong yeast, but I was afraid it won't be active much longer.
Is there ever a situation where it is safe to aerate your wort after fermentation has begun?
Background:
I am taking a stab at adding sugar and champagne yeast to a barleywine after fermentation begins. I have already used this aeration system from William's to aerate the wort before...