Mash up to 156 - 158F for a sweeter, malty beer

Start cool at about 50°F (10°C), and hold there for the first forty-eight hours.

For every day thereafter, increase your temperature by 1°F (about 0.5°C) for ten days. After it’s been in the fermentor for twelve days, it should be at a steady 60°F (15.5°C).

Free rise to 72F max?
Activity in the airlock should be low (but not absent). At that point, I let that sucker free rise to the warmest temperature I can find in my brewery. Why? To ensure that my yeast goes back and does a healthy diacetyl cleanup and scrounges up all remaining fermentable sugars.

I give the beer an additional nine days (now we’re at three weeks in the fermentor), then cold-crash to near-freezing to begin the clearing process. What remains should be a fully attenuated, malt-complex, fairly bitter, drinkable dry beer. All it needs now is carbonation and time.

Whether you bottle condition or keg, there’s no need to leave this beer in the fermentor while it conditions.