Originally Posted by Meddle
So can I substitute Hersbrucker anytime I see Hallertau?
Short answer: Hersbrucker won't be exactly the same, but it's a decent substitute.
Hallertau originially referred to Hallertau Mittelfruh, one of the four classic noble hops. Mittelfruh turned out to be susceptible to wilt and other diseases, and was in short supply by the 1970s.
Hersbrucker was planted extensively in the Hallertau region as a substitute, and through the 1980s and early 1990s was the most common Hallertau replacement.
By the late 1990s, a couple of varieties closely related to Mittelfruh had been bred (Hallertau Gold and Hallertau Tradition being the most common) and had flavor profiles closer to Mittelfruh, so Hersbrucker had some competition. It's still a popular hop, though.
On deck: Little Bo Pils, Bretta Off Dead (Brett pale)
Secondary: Oude Bruin, Red Sky at Morning (Sour brown ale)
On tap: Saison Duphunk (sour), Amarillo Slim (IPA), Earl White (ginger/bergamot wit)
Bottled: Number 8 (Belgian Strong Dark Ale), Eternale (Barleywine), Ancho Villa (Ancho/pasilla/chocolate/cinnamon RIS), Oak smoked porter (1/2 maple bourbon oaked, 1/2 apple brandy oaked)