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Author Topic: Diamond lager is Doemens 308?  (Read 656 times)

Offline MDL

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Diamond lager is Doemens 308?
« on: October 12, 2022, 03:25:26 am »
See page three of Doemens yeast catalog. Some familiar Lallemand strains:

https://www.yumpu.com/en/document/view/13089112/flocculating-yeast-doemens

Offline roger

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Re: Diamond lager is Doemens 308?
« Reply #1 on: October 12, 2022, 07:30:06 am »
According to Lallemand's site, LalBrew Diamondâ„¢ is a true lager strain selected from the Doemens Academy Culture Collection in Germany.

https://www.lallemandbrewing.com/en/asia/products/brewing-yeast/

I noticed Munich Classic is listed also. Its good they are recognizing where they got these.
Roger

Online dmtaylor

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Re: Diamond lager is Doemens 308?
« Reply #2 on: October 12, 2022, 07:49:41 am »
See page three of Doemens yeast catalog. Some familiar Lallemand strains:

https://www.yumpu.com/en/document/view/13089112/flocculating-yeast-doemens

Indeed you are correct, Diamond is 308.

Many other educated guesses on equivalencies or approximations thereof:

https://docs.google.com/spreadsheets/d/16XRUloO3WXqH9Ixsf5vx2DIKDmrEQJ36tLRBmmya7Jo/edit?usp=sharing
Dave

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Offline mabrungard

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Re: Diamond lager is Doemens 308?
« Reply #3 on: October 12, 2022, 01:18:10 pm »
I find that the Diamond lager yeast is especially clean.  That's beneficial in some beers, but it can be too clean for other styles.  I find that 34/70 does leave a pleasant maltiness that's a hallmark of many Bavarian styles.
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Offline MDL

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Re: Diamond lager is Doemens 308?
« Reply #4 on: October 12, 2022, 03:46:39 pm »
I agree with Martin. I also get a fair amount of SO2 out of Diamond. I think it makes great dry, bitter Pilsner style beer with a decent amount of noble hops and sulfate in the water. For my recent Fest 2022 I used Cellar Science German, which I believe is AEB W34/70, and I think it’s a better choice in this beer. More maltiness, less S02.

Offline saaz amore

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Re: Diamond lager is Doemens 308?
« Reply #5 on: October 13, 2022, 05:19:25 am »
I found this a little easier to read:
https://doemens.org//uploads/2022/01/yeastbank_en_02-2022.pdf

Here's the German version from 2021, so that info's been out there a while.
https://doemens.org//uploads/2021/02/hefebank_de_01-2021.pdf

You'll find 479 there as well (Munich Classic). I wonder if the 433 is the Munich Wit? The English description says "Bavarian-style",  while the German version promises "a rather neutral fruit aroma".
« Last Edit: October 13, 2022, 05:24:08 am by saaz amore »

Offline Andy Farke

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Re: Diamond lager is Doemens 308?
« Reply #6 on: October 15, 2022, 08:04:48 am »
I find that the Diamond lager yeast is especially clean.  That's beneficial in some beers, but it can be too clean for other styles.  I find that 34/70 does leave a pleasant maltiness that's a hallmark of many Bavarian styles.


I had used 34/70 for quite awhile, but kept finding a very slight tartness to it that I didn't like in German styles. I switched over to Diamond, and although I agree it might be a little too clean for some purposes, I at least avoid the tartness with this strain. Has anyone else noticed this with 34/70, or it is just me?
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Offline fredthecat

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Re: Diamond lager is Doemens 308?
« Reply #7 on: October 15, 2022, 08:46:07 pm »
from PDF
"During fermentation strain
308 produces SO2 at high levels leading to a good
flavour stability and a decreased beer aging."

SO2 combating "beer aging" (oxidation?)? thoughts?

Online dmtaylor

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Re: Diamond lager is Doemens 308?
« Reply #8 on: October 16, 2022, 02:58:13 am »
from PDF
"During fermentation strain
308 produces SO2 at high levels leading to a good
flavour stability and a decreased beer aging."

SO2 combating "beer aging" (oxidation?)? thoughts?

Yes, this is real.
Dave

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Offline erockrph

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Re: Diamond lager is Doemens 308?
« Reply #9 on: October 16, 2022, 09:42:01 am »
from PDF
"During fermentation strain
308 produces SO2 at high levels leading to a good
flavour stability and a decreased beer aging."

SO2 combating "beer aging" (oxidation?)? thoughts?

Yes, this is real.
SO2 is a free-radical scavenger and has been used in wine for quite a long time as an antioxidant. It has gained traction in the brewing world as of late, particularly among proponents of low oxygen brewing. Aside from external sources (such as campden tablets), it is also a natural byproduct of yeast metabolism, so it is already present in beer to some extent even if you don't add any from external sources. It is protective of oxidative damage, and I could see how a yeast strain that produces more of this could be desirable in some styles depending on your system and brewing practices.
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Offline Bel Air Brewing

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Re: Diamond lager is Doemens 308?
« Reply #10 on: October 16, 2022, 11:43:05 am »
In our fermentation chambers, the Diamond yeast certainly produces sulphur. Never though of it being beneficial.
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Offline fredthecat

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Re: Diamond lager is Doemens 308?
« Reply #11 on: October 16, 2022, 04:59:14 pm »
In our fermentation chambers, the Diamond yeast certainly produces sulphur. Never though of it being beneficial.

i missed you so much. how are your beers going?