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-   -   WLP090-San Diego Super Yeast Performance (http://www.homebrewtalk.com/f163/wlp090-san-diego-super-yeast-performance-263818/)

ahurd110 08-20-2011 06:58 AM

WLP090-San Diego Super Yeast Performance
Hey all,

I pitched a batch of Imperial Red Ale with 2 vials of WLP 090 roughly 2 weeks ago. OG was 1.072 and the fermentation took a good 24hrs to get going. After 10 days of continuous airlock activity the krausen finally dropped out and the gravity was only at 1.020, for an attenuation of 71%. I mashed at 151, and also used a yeast advertised as a bigger wlp001 so I was expecting much more out of it....I had heard stories of huge attenuation after only 3 days of fermentation, yet the result I got was pale in comparison to s-05. Have other people seen tremendous results from this super yeast? Im curious to know if something went wrong with mine or if this has been common place. Thanks!

scrambledegg81 08-20-2011 07:53 AM

If I recall correctly, 090 was bred from the same strain that Stone uses (hence the name), and yes: it's an absolute monster.

NTabb 08-21-2011 02:17 PM

I just used it on an IPA with an OG of 1.062 and was down to 1.010 in 3 days. It's very clean like WLP001. I also pitched two vials, but did a 2L starter on a stir plate as well.

scrambledegg81 08-21-2011 06:06 PM

Just realized I didn't even bother responding to your question.... >.<

Keep checking your gravity until it's the same for 2-3 days straight. If it doesn't drop from this point, then it sounds like you're experiencing the phenomenon known as stuck fermentation. There's around 352 million different reasons why this happens (not really...), but the most common is when the yeast decide to crap out too early, leaving residual sugars & other fermentables behind that can cause bottles to explode.

Move the fermenter to a warmer area if it's too cold (65-70F is the norm), and re-pitch another vial soon. For future reference, though, yeast starters are your best friend. :)

jtejedor 08-21-2011 10:45 PM

Have a 2 liter starter of this yeast going right now. I took a whiff of the tube after pitching and holy crap did it stink. Yeast never smells all that good in the tube/pack but man this was like a punch in the face.

oldschool 08-23-2011 02:14 AM

I heard that the super yeast is what Port uses, I could be wrong but just what I heard.

jtejedor 08-23-2011 03:28 AM

Just want to add that my starter finished out in a day. I was pretty shocked my starters usually take at least a few days. Hopefully it does this well on the beer.

terrapinj 08-23-2011 04:20 PM

stone uses english yeast

white labs said it wasn't from a brewery but just uses SD in the name because that's where they are based


Is this strain from one of your San Diego clients?

No. We included the name San Diego in the title to honor the hometown of White Labs.

JonK331 08-23-2011 04:37 PM

This yeast sounds awesome. Will definitely be trying it soon. Here's the description from the WL website: They claim that none of their San Diego customers use it... Anyone else having good luck with it?

Oops: http://www.whitelabs.com/beer/new_strain.html

terrapinj 08-23-2011 04:55 PM

this thread has a number of experiences discussed:


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