WLP940 Mexican Lager Yeast

From Mexico City, this yeast produces clean lager beer, with a crisp finish. Good for Mexican style light lagers, as well as dark lagers. This is one of the best lager strains in the White Labs yeast bank; try it with any lager.

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Style Performance Listing

A listing of how this style ranks amongst different brew styles, on a scale from 0 to 4.

German Style Pilsner2 Bohemian Style Pilsner2
Munchen Style Helles2 European Style Pilsner2
American Style Light Lager2 American Style Lager2
American Style Premium Lager4 American Style Specialty Lager4
Vienna Style Lager4 Americn Style Amber Lager4
German Style Marzen & Oktoberfest2 European Style Dark & Munchner2
American Style Dark Lager4 German Style Schwarzbier2
German Style Dopplebock4 Bock4


Feedback and experiences from previous customers. Want to leave a review of your own?

“great for dark lagers”

By: aryoung1980 | Date: May., 26th 2014 | Beer(s) Brewed: American Dark, Baltic Porter

I've brewed with this yeast twice and loved the results.

I made an American Dark Lager with a dry yeast and the WLP940. The one fermented with WLP940 really let the roasted malts shine. It took 1st place in a large competion for dark lagers. I will be rebrewing this summer for the MCAB XVII.

I also brewed a Baltic Porter for the afformentioned competition with a friend. We split a 10 gallon batch and pitched different yeasts. I went with the Mexican while he used the Zurich. The Mexican came out with dark fruit esters and was the better of the two batches. It took 3rd out of 24 Baltic Porter entries even though it was very young...8 weeks from grain to competition. It is even better now after proper lagering. I will be entering my final bottles into another competition to see how it compares.

If you want a malty lager, this is your yeast.

“WLP 940 Mexican Lager- Fantastic performance.”

By: TimBrewz | Date: Apr., 19th 2014 | Beer(s) Brewed: Mexican/American Premium Lager

I have brewed a few lagers per year for the last 8 years. Primarily I have used American Lager or Czech/Bohemian strains, making light lagers, schwarzbiers, doppelbocks and IPLs. Every time I made a lager there was either a lot of diacetyl, slow ferment, early flocculation or a long lagering phase to get the beer to finish properly. Anyway I just made a premium Mexican lager(1.050) with WLP940 and it was the easiest lager I have made to date. It acted much like an ale yeast: started right up (1.5 L oxygenated starter on stir plate) in 52 degree wort and finished out in a week(1.010). Did a D-rest for 2 days, crash chilled and kegged for lagering all within 2 weeks of brew day. The beer already tastes great, I can only imagine a month from now. I harvested a quart of yeast, and plan to brew many more beers with this yeast through the year. Highly recommended strain. Makes me want to brew lagers much more often!

“Crisp, clean, and easy to use”

By: Ben | Date: Jan., 20th 2014 | Beer(s) Brewed: Mexican Lager

Brewed a Mexican Lager a year ago with this yeast, and even though I'm still fairly new to brewing and didn't do everything "by the book", it took off just fine. The result was very clean, fairly crisp but not incredibly so. With a dash of lime it made my Cinco de Mayo party perfect. I've gotten more compliments on that beer than any other, and am now starting another, larger batch with the same strain.

“Super low fuss, hard working yeast.”

By: KUHater | Date: Dec., 17th 2013 | Beer(s) Brewed: German Pilsner

This was the yeast I tried for a German pils. It's not as crisp as WLP830, but way way easier to use. Fast to ferment,.fast to flocculate, fast to condition. I got 81% adf with all malt wort mashed at 149F. If you want a clean, low fuss, fast turnaround lager yeast, it be here.

“An excellent yeast ...”

By: Stuart Kearney | Date: Dec., 5th 2012 | Beer(s) Brewed: Pale Australian Lager

I won the South Australian and Australian Amateur Brewing Championship for the Australian Pale Ale category using this yeast. Judges comment " Excellent beer, almost too good for the style guidelines!" An excellent yeast that ferments well at lower temperatures, something of a challenge here in Australia.

“EXCELLENT yeast strain”

By: Robb Roza | Date: Dec., 5th 2012 | Beer(s) Brewed: German lager

I was looking for a German Lager to make. Well, my recipe did not achieve it, but I used 7.2# light LME, 6.2AA German Tradition, 1.5AA Hallertau Select, Irish Moss, German Salts, and this yeast and produced the smoothest Lager I have ever had in 40 years! The homebrew store owners and competitors even said nothing bad about this and it is a total keeper. I'd like to see this yeast WLP940 produced all year long. EXCELLENT yeast strain. I did two-stage fermentation as normal and always kept at 58-59 degrees in basement. I've been homebrewing for 8 years.

“Clean and balanced”

By: Justin | Date: Dec., 5th 2012 | Beer(s) Brewed: Pre-Prohibition Pilsner

I love this yeast. I made a starter but didn't do any aeration past shaking the carboy and the fermentation took off within a day and fermented out in a little over two weeks. I wanted to brew a pilsner which showcased citrusy American hops and this yeast was perfect. Clean and balanced.

“This yeast made me fall in love with lagering”

By: Jeff | Date: Jun., 8th 2012 | Beer(s) Brewed: Premium American Lager

This yeast made me fall in love with lagering. My first lager, a light American lager was made with this yeast. It turned out crystal clear, crisp, clean, with slight hints of sweet fruitiness. During
a summer homebrew festival, we went through 5 kegs of it in just over 45 minutes, and had people telling us it was the best beer they'd had at the festival. We've since bumped up the ABV and move from the light American lag! er to the premium American lager. Absolutely perfect session beer for the summer. Highly recommended!

Frequently Asked Questions




Optimum Ferment Temp.50-55°F (10-13°C)

Alcohol ToleranceMedium

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