BRY97 lag time

[Miraculix]

Bry-97 is unique that’s for sure. Especially when you look at the Suregork yeast DNA study. The fact that it produces a relatively clean beer considering it’s origin is kinda nuts.

What's its origin?

 

[dmtaylor]

What's its origin?

BREAD yeast, if I recall correctly. Or at least, in the weird oddball "Mixed" group of yeasts.

 

[jpakstis]

This is of course the smallest of sample sizes, but the one time I used BRY-97 it had a much longer lag time than other similarly-situated yeasts I had used (to that point only US05 and US04). But when it took off, it was a monster! The only batch to date that blew off the lid on my bucket fermenter!

 

[Steveruch]

It's just a laggy yeast. Dried yeast should last for several years in good storage, so I doubt that's a big player here. This one is strain specific. If lag time worries you, then use a different yeast other than BRY-97. But it's a very good yeast.

It's burping every nine seconds now. Good yeast it may be I probably won't use it again.

 

[Steveruch]

You find the occasional person on the internet having no trouble with lag time with this yeast, but the majority experiences about 48h lag.

I suspect that there is an inconsistency with the cell count of this yeast either due to production or shipping. I cannot explain this otherwise.

It was going this morning at 7, so it probably took around 38-40 hours.

 

[jack13]

One more data point: I used this yeast once, and it took several days to get going. Longest lag time I ever had.

 

[Miraculix]

I think it took also about 40 hours when I used it and then it went absolutely bananas.

This zinc thing would be really interesting to be further investigated.

 

[skleice]

I've also experienced the lag, but don't see the big deal. It's a very nice yeast that gets the job done. I like it because it doesn't attenuate as much as US-05 or similar, but still is nice and clean.

 

[couchsending]

Anyone ever measured the pH drop during said lag time? Even if you’re not seeing activity it doesn’t mean the yeast isn’t working. I wonder if it takes this yeast a long time to drop the pH and if lowering the pH into the FV would decrease lag?

 

[Big Monk]

This zinc thing would be really interesting to be further investigated.

It's a known phenomenon. Nutrient is yeast crack.

 

[Steveruch]

I think it took also about 40 hours when I used it and then it went absolutely bananas.

Same for me, around 40 and last night it was going quite vigorously. Yet this morning it's slowed way down.

 

[Miraculix]

Same for me, around 40 and last night it was going quite vigorously. Yet this morning it's slowed way down.

It's like "what is this s hit you are trying to feed me here? No bah, this wort tastes funny, not gonna eat this."

40 hours later...


........" Wooooaaaaaa me so huuuuungry! EAT ALL THE FOOD IN TEN SECONDS!!!!!"

 

[isomerization]

Anyone ever measured the pH drop during said lag time? Even if you’re not seeing activity it doesn’t mean the yeast isn’t working. I wonder if it takes this yeast a long time to drop the pH and if lowering the pH into the FV would decrease lag?

Exactly what I was thinking! Someone suggest this to Brulosophy so they can be useful again lol.

 

[Big Monk]

Exactly what I was thinking! Someone suggest this to Brulosophy so they can be useful again lol.

Useful again?

 

[dmtaylor]

Exactly what I was thinking! Someone suggest this to Brulosophy so they can be useful again lol.

The data becomes a lot more useful if you lower your expectations by saying there might be differences beginning at p=0.15 or 0.20, rather than the arbitrary and overly restrictive (and yes all these values are arbitrary) value of 0.05.

 

[isomerization]

The data becomes a lot more useful if you lower your expectations by saying there might be differences beginning at p=0.15 or 0.20, rather than the arbitrary and overly restrictive (and yes all these values are arbitrary) value of 0.05.

I’m not super concerned with the statistics (and all the associated arguments here), more so the lack of creativity the site has had over the last year plus. Maybe my expectations are too high, but really seems like they’re coasting to the end.

 

[dmtaylor]

I’m not super concerned with the statistics (and all the associated arguments here), more so the lack of creativity the site has had over the last year plus. Maybe my expectations are too high, but really seems like they’re coasting to the end.

I hear ya. I myself am an old fuddy duddy and lover of German lager styles so I grumble everytime I see them make yet another IPA. Not sure I could taste a damn thing in a blind triangle through a mountain of hops.