In my pursuit of making an authentic British style ESB, I chose this yeast. It's known for some diacetyl production, which gives the butterscotch, nutty, or even bready quality to some classic british ales (although some of the malt depth is difficult to achieve). Also, the strain is tolerant to 10% ABV, which is more than enough to handle a strong ESB. Of course, with the attenuation levels given by Wyeast, you may end up with a touch of sweetness in the brew. At any rate, here are the specifics for what I experience while using this yeast.
Yeast Type: Wyeast 1968 London ESB Yeast.
As the usual specifications for Wyeast and White Labs recommend, I allowed the 3-6 hours (I went 5) for the smack pack to expand and start yeast activation.
Yeast Uses: Because of its alcohol tolerance, this yeast has a multiplicity of uses. Wyeast list anything from a Mild to an Old Ale to an IPA and even a Barley-Wine. I feel this strain is especially conducive to making Barley Wines, ESBs, and IPAs, all of which are very nice with a residual amount of sweetness in their character. Provided a rest is done at 64 degrees for short ...