1007 is an Ale yeast, but it's some derivation of the Uerige yeast, not the only Alt yeast. Some commercial Northern German Alts are said to be made with Lager yeasts and I've had excellent homebrewed Alts that were made with warm fermented Lager yeast.I know some people who call Kolsch and Alt "hybrid" styles too but I don't see that. My pack of 1007 says right on it, "1007 GERMAN ALE YEAST".
In Germany, Lagerbier, is pretty nearly a synonym for Helles or maybe Export, but it could, technically, be applied to an Alt or Kölsch.I'm all for ale yeast makes an ale and lager yeast makes a lager... However, I'm changing my mind a little.Didn't lager originate from the German term for storage... so maybe a lager is really about any beer that is stored for a period of time.I will have to sample many ales and lagers as I ponder this
and brewing, like the world, isn't black-and-white, no matter how much we might want it to be that way.I dislike black and white definitions, it's just who I am
Do you think that all (if any) Steam Beer was made with the Anchor yeast when Jack London was drinking it 100+ years ago? I know you've formed an opinion about Lager yeasts fermented warm without trying it, I did too, but the couple I've tried have performed very well. Most of the Bohemian strains are known to have broad temperature tolerance. I probably wouldn't try it at 68°F, but I rarely would ferment an Ale that warm, either. Here's an appropriate quote from a good Brewing Techniques article to read if you are interested in this style, "Those wishing to make a California common beer in conventional fermentors will find many suitable modern lager strains with good high-temperature performance. I recommend Weihenstephan 34/70 (Wyeast #2124) and Wissenschaftliches #308 (Wyeast #2308)."This is a part of the discussion that hasn't come up yet. A beer that is fermented with lager yeast at ale temps is a weird one. I would call it a lager that was made under questionable conditions.
I only say that because many lager yeasts would not perform well under those conditions although some would.
Edited by Brauer, 15 July 2012 - 04:05 PM.