Innovation for Homebrewers

Introducing White Labs' New FlexCell Process and PurePitch® Homebrewer Packaging!

Watch the video below to find out how we're revolutionizing the art of fermentation. Our new homebrewer packaging is now widely available in stores around the world.

Click here for information about PurePitch packaging for commercial customers.

FAQs for Homebrew Retailers and Homebrewers

Our New PurePitch Homebrewer Packaging


Retailer Product Display 

Retailer and homebrewer inquiries, please contact White Labs:
Domestic and Canada: (888) 5-YEAST-5
International: (858) 693-3441


** White Labs released four videos on PurePitch. with topics including "What is PurePitch?", shelf life, and what if any impacts the change has on existing programs such as Customer Club.

 Homebrewer PurePitch Packaging FAQs:

I really liked the homebrew vials, what makes PurePitch packaging better? 
While we know our customers love our homebrew vials, the FlexCell process and new PurePitch package allows White Labs to create yeast that's never been transferred or exposed to the environment, ensuring our commitment to purity. The new PurePitch packaging is a recyclable, flexible material allowing for increased breathability, reducing the chance of gas buildup and maintaining an optimal environment for the yeast. Plus, with the new packaging we anticipate a longer shelf life and due to the environmental savings, our pricing should remain consistent in the coming years.

For our retailers, the FlexCell process improves inventory management, ensuring our customers get the product they need when they need it. For the first time, our packaging will include barcodes to help retailers manage inventory levels and track sales, and the PurePitch packaging allows for easier storing and merchandising as foam trays or racks will no longer be necessary to display our yeast.

What is the volume of the homebrew PurePitch packages?

Net vol. 40 mL

When will homebrew retailers and homebrewers begin to receive the new packaging in their orders? 
Homebrew retailers and customers were provided PurePitch packaging in orders following the release of commercial PurePitch packages, which began in August 2014.

Will this impact your home winemaking customers too? 
Yes, our home winemaking customers will also receive PurePitch packaging.

How should customers/retailers store the new PurePitch packaging? 
The PurePitch packaging storage requirements are the same as our previous homebrew products. Yeast should be stored in the refrigerator prior to use. Remove the yeast from the refrigerator approximately two to six hours before pitching and allow the yeast to reach room temperature. The reason for this is to prevent temperature shock when the yeast is pitched.

We provide retailers with product display pieces.

What does the new packaging mean for retailers? 
For the first time, our packaging will include barcodes to help retailers manage inventory levels and track sales, and the PurePitch packaging allows for easier storing and merchandising as foam trays or racks will no longer be necessary to display our yeast. And we will provide homebrew retailers with product display pieces when the packaging is released.

Does the new PurePitch packaging require any new procedures to use (ie. sterilizing the bag, cutting tool, etc.)? 
Customers should sanitize scissors/cutting tools and wipe down the PurePitch package before cutting it open and pitching it directly into the fermentor.

Will this new process/packaging change the cost of your products? 
No, the cost of our yeast cultures will remain the same for domestic and international retailers and customers. However, the new technology should allow us to provide more consistency in our pricing for years to come.

Will the new packaging be available in the same size as previously offered? 
Yes, our new homebrew PurePitch package size will be the same size as our vials and can be directly pitched into a five-gallon batch of wort.

Will you offer the same strains in the PurePitch packaging? 
Yes, all of our current strains will be available for purchase by retailers and customers in PurePitch packaging.

Will you still reward your customer club members with prizes? If you are doing away with the old vials and labels, what will they redeem for swag? 
Customers can continue to redeem the vial labels for prizes, and once we launch our PurePitch packaging, members of our customer club can redeem the empty PurePitch packages for prizes.

How much yeast is in my White Labs homebrew PurePitch?

The wording on our PurePitch® packaging - 'Made to Contain over 100 Billion Cells' - is a target cell count number for each of our yeast packages. We specifically say “Made to Contain” because not all packages will contain more than 100 billion cells even though we target that number in our production and packaging processes. This is because of the reality of cell biology - cell sizes vary, cell packing varies, and since cells are microscopic, those small variations lead to large fluctuations in cell numbers. 

Although the Pure Pitch® packages state a Cell net volume of 35 mL, the packages contain a minimum of 40 mL, with actual volumes ranging from 40 to 50 mL. Due to this reality, we will be adjusting the stated net volume on our packaging to reflect the 40 mL amount. 

In our production, we allow for cell counts of 1.5 to 3.0 billion per milliliter which will produce 60 to 120 billion total cells if 40 mL. We target the high range of cell counts and fill volumes in our production and packaging processes, however as stated above, the reality of cell biology is that those numbers will vary.

We publish the QC data that includes the actual cell count of each lot on We state on the allowed cell count range (1.5 to 3.0 billion per milliliter) because it accurately reflects the reality of packaging microorganisms.

Do you have a question that wasn't answered by one of the FAQs outlined above? Send us an email at