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Yeah, I didn't see these issues with S05 before, even at higher (admittedly not 30C/86F, but relatively high) temps, and given this is roughly the same flavor I got from S04 when everyone thought it was high temps I'm thinking it's unrelated. That leaves me with my equipment which is as follows...

The measured temps are from a crystal thermometer on the fermenting vessel. Not a perfect system, but at least close enough for me to know roughly what the fermentation temp is. I've checked with a spot thermometer, too-I think my 23-24C numbers are accurate, which is why I'm confused why I get...

Hello all-I've been having some recent issues with S05 which mirror an earlier issue I was seeing with S04 a couple years ago. The thought back then was that I was fermenting too hot and I've now gone through 3 batches which seem to have the same off-flavors. I've done both Pale and Maris Otter...

Just started an English Bitter with this strain. I've had horrific experiences with S04 (terribly off-flavors to the point where I've probably dumped 4 batches at this point) so I'd used Liberty Bell (M35) for the last run and it came out good if a bit thin-flavored, so MLHBS suggested this one...

Report back on this: I completely forgot I also had another beer in the (very unfinished) basement which was sitting around 60F/15C for the past month in the primary. Flavor was off right from the start-I'd tried to use a different yeast but the starter didn't take so I just tossed in S04 with...

How are you saving your yeast? Just overbuilding starters or washing yeast cake?

Well I do have one more packet of S04-could do to just brew a half-batch of a simple ale without the biscuit and with S04 at ~20C and see where it gets me...

If anything, the only thing it stands to be is that biscuit malt, which I've kept in a sealed container, bu admittedly probably for a year. I'll bring it round MLHBS and see what they thing, and toss that malt in the process.

Yes, other people do, as well, but I don't have any other brewers to test with. Maybe I'll take a sample down to MLHBS and see what they say...

If it's not the yeast then the only other thing it could be is the biscuit malt-every single other thing in my setup/recipe has been used on another beer with no ill-effects, but every single English ale I've made in the past year has had a similar off-flavor with varying intensity. There was...

Well this ended up a bit off-topic, but interesting all the same. To bring it round, a bit, I just finished dry-hopping my English IPA with S04 and give it a taste-the best way I have of describing the off-flavors is 'sharp' and almost metallic. I seriously think the beer is completely ruined-I...

Perhaps I'm just not a fan of S-04, then. I could swear I brewed a couple beers initially which came out fine with it (but again, it may just have been fermentation <17C, which may have suppressed some of those esters). Unfortunately, however, I'm in Central Europe, so I'm pretty much limited to...

I've never had any issues with S05 and off-flavors, but admittedly I tend to use S05 for hop-forward IPAs, so I guess it's easier to hide behind those? As it gets cooler this winter I guess I'll give it another shot when that closet gets down around 15C and just be more diligent at keeping the...

To be fair I'm fairly lax on all of the above. Being winter, my indoor temp is a fairly constant 20C thanks to my heating, but I keep these in an unheated (interior) closet which tends to keep a fairly constant 18C except when I open the door, which I do a lot. So I don't have a wide...

Yes brewing with tap water, but I've made probably 20 different beers in the past year-the only ones that seem to ever get this off-flavor are English ales/bitters, which are (I think exclusively) made with S04, though also Biscuit malt, and maybe the same biscuit malt I bought 2 years ago-is...

So I've been brewing British ales off and on for the past year. Throughout, I've had some issues with off-flavors. I can't for the life of me sort out what it is, nor can I put my finger on what the flavor is. It's not specifically 'off', it's just a slightly ?flat? flavor in the fermenting wort...