WLP4030 Franconian Dark Lager - PurePitch® Next Generation BB: 24/12/2024

WLP4030 Franconian Dark Lager – PurePitch® Next Generation BB: 24/12/2024


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Hails from the Franconia region of Germany. This yeast exhibits a short lag time and has flavour profile characteristics that complement dark, roasted malts. Makes this yeast a perfect fit for any big malt driven dark lagers, it’s also able to produce crisp light lagers

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Franconian Dark Lager is a single strain of Saccharomyces pastorianus that hails from the Franconia region of Germany. This yeast exhibits a short lag time and has flavor profile characteristics that complement dark, roasted malts. While the dark malt complementarity makes this yeast a perfect fit for any big malt driven dark lagers, it also makes a great all-around house lager strain.


74% – 78%


Low to Medium


Medium to High (8-12%)


48° – 54° F
8° – 12° C

STA1 :



Our mission is simple: Provide commercially unavailable and rare strains of yeast and bacteria to the homebrewing and craft brewing communities in high quality liquid culture.

Yeast and bacteria are the most important components in the brewing process. They serve as the bridge between the wort brewers produce and the beer it’s transformed into during the fermentation process. During this transformation these organisms create a myriad of flavors, aromas and other metabolites that largely define the character of the beer. When brewers use our cultures, the end result is a previously unattainable sensory experience that cast the finished beer in a truly unique light. Here at The Yeast Bay, we’re proud to offer one of the most inimitable lineups of yeast and bacteria on the market to the most innovative brewers across the world.

Bottom line: Brewing great beer is hard, sourcing unique cultures should be easy.


Founder/Chief Yeast Wrangler

Nick has had a long time love of homebrewing, and has always enjoyed experimenting with new ingredients and techniques to evolve and improve his recipes. As a biological scientist, Nick took a particular interest in the organisms that convert the wort he brews into the beer he serves. Specifically, an interest in the vast number of strains that were not commercially available to homebrewers in pure culture.

Putting to work a formal education in microbiology and chemistry, Nick began to isolate, characterize and bank a vast collection of unique yeast and bacteria from every source he could find. As he did this, something dawned on him: a high impact contribution to the brewing community would be to make these novel strains and blends available to homebrewers and craft brewers around the world. At that moment the seed was planted, and after many months of plating and colony selection, sore microscope eyes, test fermentations and entrepreneurial research, The Yeast Bay was born!

Nick holds a BS in Biology (Molecular/Microbiology emphasis) with a Chemistry minor from University of Wisconsin-Stevens Point and a MS in Biomedical Engineering (Biomaterials) from University of Wisconsin-Madison, and puts his education to use on a daily basis isolating and characterizing new microbes.


Contract Manufacturer

While Nick will head up isolation and characterization of new strains of yeast and bacteria, we are partnering with an industry leader to manufacture the necessary quantities of these organisms for commercial sale. Once Nick identifies an organism as a candidate for one of The Yeast Bay’s offerings, the good people at White Labs will bank, propagate and package the organism for sale as high quality liquid culture.

White Labs has been growing organisms for the brewing industry since 1995, and the quality of their products has a lot to do with their success. Here at The Yeast Bay, we’re incredibly proud to be partnering with White Labs to deliver the highest quality cultures.

Our goal in creating PurePitch® Next Generation for Homebrewers was to provide a product that will allow hobbyists and small scale brewers a convenient and modular package to pitch a consistent 7.5 million cells/mL; a commercially recommended pitching rate for standard ale ranges. The same package has proven to be an optimization to PurePitch® for larger professional brewers for over a year.

Now with more yeast, get a foolproof fermentation without a starter. Following a commercially recommended pitching rate allowing you to pitch like the pros!

We are the industry leader in quality with 38 quality checkpoints for every single strain. The same quality and care you trust, for both homebrew and professional yeast. You can be assured that all products released from White Labs have passed rigorous tests to ensure the highest viability and purity at the time of QC release.

With 79 Core strains and countless more in the Vault, we have has a strain for every beer, whether you’re using a trusty workhorse like WLP001 California Ale Yeast® or experimenting with something new and rare in the Vault.  Find these new strains at your local homebrew store carrying White Labs, or order direct from us!

Just twist the cap & pitch!

All of our people are passionate about what we do – a combination of Departments from Sales & Marketing, Customer Service, Microbiology, Production, Packaging, White Labs Brewing Co, White Labs Analytical Laboratory, Education, and R&D are dedicated to making the best yeast possible. It’s easy to love what you do in this industry which is why so many of our team members enjoy homebrewing, just as we did when we started in 1995. We encourage our teams to homebrew and build that love of brewing, the way it was when our company was founded.

PurePitch® Next Generation for Homebrewers FAQ

Is PurePitch® Next Generation larger than your previous package?

Yes!  Now with more yeast, you get double the pitch. PurePitch® Next Generation is designed to pitch at a rate of 7.5 million cells/mL per 5 gallons/20 liters, a commercially recommended pitching rate for standard ale ranges.

Do I need to make a starter?

No! For any standard ale, you will get the perfect fermentation by pitching directly – NO STARTER NEEDED.

What if I am brewing something that is not a “standard ale” – how do I know how much yeast I need for my batch?

Each pouch of PurePitch® Next Generation provides general quantity recommendations per 5gal/20L of wort.

​Our online calculator at yeastman.com allows you to see the exact recommendation for you using your volume, temperature, and gravity. Allowing you to customize the pitch rate to anything you want, larger or smaller!

What does 7.5 million cells/mL mean?

When pitching 1 pouch of PurePitch® Next Generation into 5 gal/20L of wort, there will be 7.5 million cells per milliliter.  This is a commercially recommended pitching rate, allowing you to pitch like the pros.

What is the shelf-life of PurePitch® Next Generation?

The shelf-life is 6 months from the QC-release date labeled on the package.  As a result of the proprietary dual-layer film, yeast are able to remain in excellent condition with high viability and performance.

Why change to a new version of PurePitch® ?

Our number one request from the homebrewing community has been for more yeast! Next Generation has been developed in response to brewing styles and fermentation techniques requiring more yeast than ever before, as well as the desire for a more optimal yeast package without the need for a starter.

We stock the largest range of yeast for home brewers in Europe, ensuring we have something for every beer style you could want to brew. Be sure to check it out here

Additional information

Weight 0.75 kg
Country of Origin US
HS Code 2102101090


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