st peters Ruby ale yeast.?

[beer gut]

Hi all I am going to brew my first clone St peters Ruby ale. I am not sure what yeast st peters brewery use? There are loads of Irish yeast to chose from but I don't think st peters would use a irish yeast there would use one of English varieties but which one?

[seymour]

St. Peters is proud of their proprietary English ale strain, but it's almost certainly derived from Whitbread-B, like so many others. S-04 would be fine. Ferment like St. Peters Brewery does at 22-23°C.

St Peters bottles are not intentionally bottle-conditioned. But, word to the wise: they do filter yeast before bottling but do not pasteurize, and sometimes their filtering system doesn't work so great. Next time you go to buy a bottle, hold several bottles to the light and select the one with the most yeast deposit. Other forum members have successfully harvested homebrew yeast from St. Peters bottles. I thought I had once, but then I accidentally let it get infected in one of the step-up stages.

[beer gut]

Thanx seymour for the reply. Would white labs whit bread yeast have the same profile as so4? I have never tried taking yeast from a bottled commercial beer before I will welcome the challenge, I have heard of people harvesting fullers yeast and Guinness yeast but never had ago my self.

[seymour]

It depends which White Labs stain you mean. White Labs WLP017 "Whitbread Ale" is supposedly derived from the Whitbread A sweet strain, which is not as tart and high-
attenuating as Whitbread B dry strain. White Labs WLP007 "Dry English Ale" is supposedly derived from the Whitbread B dry strain, as is S-04, so those two should perform similarly (although not identically, I know, I know…)

[beer gut]

Thanx again Seymour.