This is another article in the continuing series on Russian imperial stout.
With the wide variety of dark grains available to a homebrewer, he or she can manipulate the aroma, flavor, color, and astringency of his or her dark grain blend. In a 5.0-gallon (19-L) batch, the total amount of dark grains may vary between 2 to 5 lbs. (roughly 1–2.5 kg). Although the dark grains play a central role in the grist of a Russian imperial stout, it’s important that the other grains complement them. The dark grain component of a Russian imperial stout could be paired with almost any combination of base malt and specialty malts. There are some combinations that make more sense than others.