will killer yeast kill brett, lacto, etc?

HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Help Support Homebrew Talk:

killian

Well-Known Member
Joined
Apr 22, 2007
Messages
1,580
Reaction score
57
Location
western/central new york
I'm working on a recipe and thinking about bottle conditioning with champagne yeast. If champagne yeast is a killer yeast what exactly will it kill?
 

godofcheese

Well-Known Member
Joined
Jul 13, 2009
Messages
185
Reaction score
4
Location
Bryan, TX
I don't think it will actually kill anything. I think Killer is just saying that it will dry things out to the extreme.
 

ryane

Well-Known Member
Joined
Nov 29, 2008
Messages
847
Reaction score
9
Location
Washington
Brett is a neutral strain, which is why it can infect wine/champagne

Ale yeasts are almost all susceptible strains and will be killed, and the jury is out on pedio/lacto
 

othellomcbane

Well-Known Member
Joined
Sep 12, 2011
Messages
228
Reaction score
40
Location
Beacon
I'm curious about this. I know Ithaca bottles their Brute (which has Brett but not bugs) with three different kinds of champagne yeast. I haven't tried to culture Brett from Brute myself, but I would assume the Brett survives.
 

toastermm

Well-Known Member
Lifetime Supporter
Joined
Jun 23, 2008
Messages
152
Reaction score
3
Location
The Northern Rockies
Killer yeast is any yeast that is harboring a 'killer virus' and produces a 'killer protein' that is toxic to non-killers.

http://en.wikipedia.org/wiki/Killer_yeast

Any yeast not carrying the killer virus is NOT immune, and will experience cell death with any interactions with the killer protein in the liquid.

There might be a small chance that a sensitive non-killer yeast can survive, but the yeast in the beer/wine/mead/cider will be out-of-proportion and skewed to have more killer yeast.

As per bacteria, there are a few studies out there that show they "might" be affected by the killing activity or might not be. But since Brett IS a yeast, it will be affected for sure. Lacto and/or pedio may or may not be affected.
 
Top