Originally Posted by Gengis
Wow... That's odd! I suppose you used the exact hop profile in both batches? Are you able to be more precise in the flavor profile?
Beers were exactly the same wort, just split into two fermenters, dry hopped the same too. Recipe was the Union Jack IPA clone that can be found here or from The Brewing Network
A direct copy and paste from my quick notes so excuse my laziness to correct the errors
Both beers have a light haze, SO4 is slight clearer may be due to hopping in the kegs though so disregard. Color seems slightly lighter in SO5 version, probably due to suspended material. Head size and retention is pretty much the same.
SO5 - Much stronger hop aroma, good citrus kick with some simcoe and amarillo coming in late, malt character comes up as beer warms, low caramel notes.
SO4 -Aroma comes off a little more 'sweaty', malt more at the forefront with some bready, husky notes. Also some light alcohol notes in aroma.
SO5 Flavour is good, slightly less malt character than the real thing, good hop flavour, mostly citrus and hop oil flavours, lightly sweet start into a balanced bitterness.
SO4 Very similar in initial flavour, difference is are more in the aftertaste, nectarine type flavours in finish. Flavour feels a little more empty and harsh in this beer, SO5 version seems 'softer', SO4 comes off as slightly more bitter also. SO4 has some peppery notes.
SO4 version comes off as being thinner even though the OG is higher? - somewhat accenuated by the slighly lesser flavour level.
Overall - surprised at how similar the yeasts are in this beer. Neither matches up to the other homebrew of this beer I've had that use 1968. Would really need to do a test using a lighter flavoured beer, So5 is better due to a rounder flavour giving less harshness but wouldn't hesitate to use SO4 if I was forced to. Would be interesting to do a side by side with SO5 and 1968 given the chance.