Originally Posted by jmo88
to me s-04 has a distinctive peppery or spicy aroma. It's clean for an English ale yeast but not as clean as 05. 1056 and 001 are a little cleaner than us-05 IMO.
I agree with this as far as the 1056 and 001 being cleaner than the US-05. I typically get an interesting pale stonefruit/tropical fruit ester from the US-05 at warmer temps. It works well with a fruitier/more citrusy hop character. I just used the s-04 in a split batch of bitter, the other half feremented with WLP007. The 007 has a nice round malt character with a little fruity-ness, where the S-04 has these huge apple notes, almost like apple juice. I'm pretty sure it's not acetaldehyde either since both beers were a 2 week ferment under the same conditions. Maybe it will clean up with a bit more time in the bottle, but it was quite apparent that I like the WLP007 much better.