I have brewed a stout intended to be around 6%. After two weeks the FG is 1.024 but expected to be closer to 1.010.
I found when I made the yeast starter (Giga Yeast 011) the yeast clumped and dropped out really quickly, it seemed like the same thing happened very quickly in the fermenter.
Could it be that I need to swirl the yeast regularly in the fermenter? Any other considerations?