his chart only went up to 80F.
most sources seem to point to a warmer temperature being optimal: httpss://www.homebrewersassociation.org/how-to-brew/rehydrating-dry-yeast/
this is the source I remember reading the first time I decided to look into rehydrating my yeast with water: httpss://koehlerbeer.wordpress.com/2008/06/07/rehydrating-dry-yeast-with-dr-clayton-cone/
eta: obviously I don't feel that strongly about this since I don't even rehydrate. I'm just passing on the information I have referenced in the past.
That data is in line with some of the other numbers I've seen that suggested that rehydrating around 90°F results in ~90% viability and ~75% near 75°F.
Another factor is the temperature difference between the rehydrated yeast and the wort. Pitching warm yeast into cold wort may erase half of the viability gain of rehydrating. There seems to be a benefit to allowing the rehydrated yeast to cool down so it is isothermal with the wort at pitching temp.
06 makes a decent Wießbier, but I only drink them at the Schneider pub. Even then, 1 or 2 as part of a Bavarian Breakfast and I'm set for another couple years, so my opinion probably isn't valid.
The brewpub near me makes a Kölsch with American Ale yeast. However, it lacks the particular fruitiness of the Kölsch yeast, which is fine by me. It's really a dry Blonde Ale with a German hop character. I like it a lot.
Edited by Brauer, 10 June 2016 - 03:04 PM.