Mash recirculation is a popular technique. Most of the new integrated single-vessel packages (Grainfather, etc.) include the feature. A growing number of home brewers today incorporate mash recirculation in their BIAB or multiple vessel rigs, frequently adding temperature control through either...
So far in my homebrewing journey, I have explored the three simplest levels of homebrewing. All have used malt extracts rather than mashed grains (mashing is the process of converting the starch in the grains to sugars). "Malt extract" is wort (unfermented beer) from grain that has already been...