I'm brewing my first big Imperial Stout (1.100 OG) and after 4 weeks I still haven't achieved my desired FG. Here's my fermentables list:
15 lbs LME (light)
1 lb Chocolate
1 lb Roasted Barley
3/4 lbs Crystal 60L
3/4 lbs Crystal 120L
Brewers friend expected an OG of 1.940, and I got...