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Cleanest lager yeast between 65-72F?

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CyberFox

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What is currently considered the cleanest lager yeast when fermented between 65-72 degrees Fahrenheit (not under pressure)?


Thanks in advance! :mug:
 
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So 34/70, S-189, and Novalager so far. How would Diamond compare to those three?
 
I was thinking of trying Diamond next, but I've heard that it throws more esters than others at 65F+. Has anyone noticed that?

Also, it sounds like 34/70 can be cloudy. Are Diamond and S-189 the same way or do they floc out better?
 
My go-to is 34/70 but I mostly ferment under pressure. It also is a good one if you're into saving/reusing yeast slurry, even after being fermented under pressure. I've got a porter on it right now, at 10psi, that took off very fast and the smell from the spunding valve is delightful.
 
I was thinking of trying Diamond next, but I've heard that it throws more esters than others at 65F+. Has anyone noticed that?

Also, it sounds like 34/70 can be cloudy. Are Diamond and S-189 the same way or do they floc out better?
Yes, Diamond can be a little more fruity when fermented warm.

Any yeast can have a little haze. None of these is excessively hazy. Lagers still do need a little age to clear up completely, just like any beer.
 
Our club is brewing Cali Commons for Big Brew Day and S-189 is what I'm pitching. Starting at 60* for 2-3 days then up to 65* to finish gives it just the perfect esters for this style. Pitching at 48* and setting chamber to 52* makes a clean fast floccing beer.
 
Has anyone here compared Cellar Science German vs 34/70? I'm wondering if they are similar, if not the same strain.
 
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Yes, Diamond can be a little more fruity when fermented warm.

Any yeast can have a little haze. None of these is excessively hazy. Lagers still do need a little age to clear up completely, just like any beer.
I was actually recently wondering the same thing, thought my mind is making it up though. Now I also think that diamond can get a bit more fruity when fermented warm.

My choice would be 3470 for cleanest result possible.

Plays very well with American hops btw.
 
^true^ I pitched my "cold IPA" with 34/70 at 65°F and after two days let it rise to 66°F and two days later bumped it to 67°F and holy cow did I get the rhino farts! First time using 34/70 so that was an experience .

Fortunately that attenuated to pretty much gone already though I noticed the two kegs purged with the fermentation gas had a tangy aroma while being filled as the gas escaped. I gave the kegs a few extra rounds of headspace purging to hopefully banish the last of the sulfur. Probably be tapping the first in a week or so when a keezer position opens up...

Cheers!
 
^true^ I pitched my "cold IPA" with 34/70 at 65°F and after two days let it rise to 66°F and two days later bumped it to 67°F and holy cow did I get the rhino farts! First time using 34/70 so that was an experience .

Fortunately that attenuated to pretty much gone already though I noticed the two kegs purged with the fermentation gas had a tangy aroma while being filled as the gas escaped. I gave the kegs a few extra rounds of headspace purging to hopefully banish the last of the sulfur. Probably be tapping the first in a week or so when a keezer position opens up...

Cheers!
I have never fermented it cold and I never got sulfur from it. And I've used it a lot in the past. At room temperature it's as clean as it gets.
 
I'd say it depends on your aim. I have quite some experience with S-23, S-189 and W34/70 at various temperatures. S-23 is solid, but can be a bit fruity when young. I've never gotten the 'fruit salad' results some people claim, even when fermenting warm and high gravity. I've got a very big porter going with it now and even though it's under pressure, given the OG and temperature I would say this still counts as a clean mark. S-189 works fine too, but it's a bit malty. 34/70 is more focused on hops and takes forever to clear.

I hate Diamond at any temperature because it takes six months to become palatable in my opinion. I've not tried Nova yet. Pseudolagers are a lie.
 
y'all FAFO a lot.

I would do 34/70 or wlp940 (maybe Baja?) under light pressure and try to keep them happy.
I think it is pretty acceptable, but 34/70 is amazing in the 50s.
 
I hate Diamond at any temperature because it takes six months to become palatable in my opinion. I've not tried Nova yet. Pseudolagers are a lie.

Um, what? Some of my best beers have been made with Diamond. What issues have you had with it? The only thing I have noticed is it needs quite a while in primary to clean up diacetyl on some batches.
 
Um, what? Some of my best beers have been made with Diamond. What issues have you had with it? The only thing I have noticed is it needs quite a while in primary to clean up diacetyl on some batches.
I'm planning on ramping for the diacetyl rest at around 60% attenuation on diamond. Do you normally do it late? I don't see any risk once you've passed 50% to let it rise since major cell growth has already happened.
 
i hate diamond also. and maybe its in my grain bills but 34/70 always gives me sulfer around 68. and doesnt at 65 or less. also i havent noticed a differenc in 34 /70 at 50 vs 65 . except that it is much quicker at higher temps.
 
It's good to hear others' thoughts on Diamond. Sounds like 34/70 is a pretty safe bet at 65 degrees. I might just stick with that. I'm not too concerned about cloudiness as long as the taste is right. I imagine Cellar Science German would be a good, cheaper alternative too.
 
This is not an exaggeration, i let diamond go free for all, no temp regulating, just 2 row, and got a green apple cider beer. I didnt like it and threw it out but i should have just cold crashed it, carbonated it, and drank it. lol. 34/70 is my go to.
 
This is not an exaggeration, i let diamond go free for all, no temp regulating, just 2 row, and got a green apple cider beer. I didnt like it and threw it out but i should have just cold crashed it, carbonated it, and drank it. lol. 34/70 is my go to.
Green Apple Cider Beer sounds like a new beer style! 🤣
 
I'm planning on ramping for the diacetyl rest at around 60% attenuation on diamond. Do you normally do it late? I don't see any risk once you've passed 50% to let it rise since major cell growth has already happened.


I usually wait until I'm within 0.010 of my FG to D rest but that's me. You technically don't need to ramp the temp but temp does help speed things up, so I'll usually kick it up from say 50°F to 60-65 and park it there for two weeks, then cold crash for 3 days and rack to the keg.
 

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