All Things Fermentation Blog

Tips From The Pitch - Lagers
Brewing Technical
Lagers
Feb 25, 2025

Tips From The Pitch - Lagers

Beloved for their clean, crisp, and ultra-drinkable profiles, lagers are the most widely brewed beer in the world. Craft your best lager with these six tips from the pitch! Download PDF - Tips From the Pitch-Lagers 1. Pitch Rate Matters Industry Standard is 1.5 - 2 million cells/mL/°Plato This refers to the rate of cells…

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Science of Beer: pH vs Titratable Acidity
Brewing Technical
Alcohol Tolerance
Sour Beer
Titratable Acidity
Jan 30, 2025

Science of Beer: pH vs Titratable Acidity

The pH scale, that fundamental guide in brewing, was crafted in 1909 by S.P.L. Sørensen. He devised a method for determining the acidity or alkalinity of solutions on a scale from 0 to 14. His ingenious creation unveiled the significance of pH in biochemical reactions, particularly those brewing relies on. But what is pH? In…

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Biotransformation: A Legitimately Exciting Beer Trend
Brewing Technical
Hazy
Biotransformation
Thiols
Sep 28, 2024

Biotransformation: A Legitimately Exciting Beer Trend

Tropical flavors. Fruit bomb beers. Unlocking bound thiols. These are buzz phrases often tossed around whenever the topic turns to biotransformation. In reality, the biotransformation of hop compounds by yeast strains in beer is a fascinating and multifaceted process embraced with great excitement and enthusiasm. Brewers are right to be intrigued, given the clear potential…

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Nitrogen Requirements for Yeast
Brewing Technical
Yeast Nutrition
FAN
Free Amino Nitrogen
Aug 21, 2024

Nitrogen Requirements for Yeast

“Yeast cells need 100% of their essential vitamins and minerals (nutrients) to make it through a fermentation properly nourished and to be ready to work again another day, much the same way humans do.” At White Labs, we do countless experiments on nutrient levels, especially FAN (Free Amino Nitrogen). Yeast needs sufficient nitrogen to carry…

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Osmotic and Acid Stress Tolerance of Yeast
Brewing Technical
Alcohol Tolerance
Acid Tolerance
Sour Beer
Titratable Acidity
Aug 7, 2024

Osmotic and Acid Stress Tolerance of Yeast

Brewers regularly produce wort with varying strengths and chemical properties. Most brewing strains have evolved to thrive within a narrow range of growth conditions specific to certain styles. As brewers, we already choose strain parameters depending on the yeast strain, from attenuation ranges, flocculation characteristics, and preferred fermentation temperatures. Filter Through Our Yeast & Bacteria…

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R&D Experiment: WLP655 Belgian Sour Mix 1 Over Time
Brewing Technical
QA/QC
Pitch Rate
Sour Beer
Titratable Acidity
Jul 22, 2024

R&D Experiment: WLP655 Belgian Sour Mix 1 Over Time

WLP655 Belgian Sour Mix 1 is a unique blend of Saccharomyces, Brettanomyces, Lactobacillus, and Pediococcus. Beers produced with Belgian blends, such as WLP655, are often aged in bottles or barrels for several months, continuously evolving their sensory profiles. The impacts of different fermentation conditions on beer evolution are not fully understood. Our R&D team experimented…

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How Yeast Blends Can Help Brewers Make the Best Beers?
Brewing Technical
Yeast Blends
Jul 19, 2024

How Yeast Blends Can Help Brewers Make the Best Beers?

Before Emil Christian Hansen isolated a single yeast culture, in early brewing history, beers were most likely a combination of multiple strains since brewers did not have the ability to isolate a pure yeast strain. This is evident in things like Kveik strains, from the traditional farmhouse methods. These mixed cultures contained a variety of…

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Forced Fermentation Test
Brewing Technical
Analytical Lab
QA/QC
Jun 27, 2024

Forced Fermentation Test

A forced fermentation test is performed to identify the final gravity/full attenuation potential of a wort sample and yeast culture. This is particularly helpful when developing new beer recipes, if there are changes in the mash profile, as well as working with new ingredients, including yeast. The sample is held at a higher temperature and…

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Forced Diacetyl Testing
Brewing Technical
Brewzyme-D
Diacetyl
Analytical Lab
QA/QC
Jun 5, 2024

Forced Diacetyl Testing

Purpose Diacetyl is a common buttery off-flavor that occurs during fermentation. Alpha-acetolactate, the precursor to diacetyl, can also remain in beer after fermentation and is odorless. Once the yeast is removed from beer, this precursor is converted to diacetyl, leaving residual buttery character. Compound Spotlight: Diacetyl This method is a quick and easy way to…

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Quick and Easy Cell Counting Tips
Brewing Technical
Cell Counting
Apr 3, 2024

Quick and Easy Cell Counting Tips

Pitching the right amount of yeast is key to reliable fermentations and great-tasting beer every time. Cell counting yeast cultures help determine the correct volume/weight of live yeast needed and the current condition of the generation, making for more consistent fermentations. Differences in pitching rate can affect flavor production, fermentation speed, yeast health, and flocculation,…

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Is your CIP optimized for cleanliness?
Brewing Technical
CIP
Nov 10, 2023

Is your CIP optimized for cleanliness?

Our dedication to exceptional quality at White Labs means we carry out the same standards and care for every batch for consistently superior products. That means constantly reevaluating our processes for a more effective cleaning program to maintain cleanliness. Changing processes means changing SOPs; documentation is typically the first thing to “fall through the cracks”…

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A New Yeast Strain Forged By The Brewer Gods
Brewing Technical
Lagers
Strain Release
Clawhammer Supply
Nov 6, 2023

A New Yeast Strain Forged By The Brewer Gods

The New Fermentation Society Exclusive Strain One of the best ways to stay connected with White Labs is our Exclusive & FREE society, White Labs Fermentation Society. By joining the society, you will get notified of first-look at exclusive unique strain drops with fun swag, label redemptions for Fermentation Society Gear, as well as a…

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