The Secrets of US-05 Yeast

US-05 , also known as Safale US-05, is a dried American strain that is widely used in the industry. It is highly regarded for its fermentation properties, which resemble those of popular liquid yeast strains such as Wyeast 1056 (American Ale) or White Labs WLP001 (California Ale).

One of the key advantages of using US-05 yeast is its ease of use. Being a dried yeast, it has a long shelf life and does not require the same level of care and attention as liquid yeast cultures. This makes it a popular choice for homebrewers and professional brewers alike.

US-05 yeast is known for its low to medium sedimentation, meaning that it settles out of the relatively quickly after fermentation is complete. This can be beneficial for brewers who prefer a clear beer, as it reduces the need for excessive fining or filtration.

When it comes to fermentation temperature, US-05 yeast performs best at a range of 64–74°F (18–23°C). However, it is important to note that yeast can produce different flavors and characteristics at different temperatures. For example, fermenting at the lower end of the temperature range (around 64°F or 18°C) will result in a cleaner and more neutral flavor profile. On the other hand, fermenting at the higher end of the range (around 74°F or 23°C) may produce more esters and fruity flavors.

It is worth mentioning that US-05 yeast is often compared to another popular dried yeast strain, S-04. Both yeasts are known for their cold tolerance and fast fermentation. However, there are some differences between the two. S-04 tends to attenuate less and produces more fruity and minerally flavors when fermented at lower temperatures (around 58–64°F or 14–18°C). In contrast, US-05 is cleaner and more neutral at moderate ale temperatures (around 65–69°F or 18–21°C).

US-05 yeast is a reliable and versatile dried yeast strain that is widely used by brewers around the world. Its ease of use, low to medium sedimentation, and wide fermentation temperature range make it a popular choice for both beginners and experienced brewers. Whether you are brewing a hoppy American ale or a clean and crisp , US-05 yeast is a reliable option that can help you achieve the desired flavor and aroma in your beer.

What Is Yeast US-05?

Yeast US-05, also known as Safale US-05, is a type of dried American Ale strain commonly used in brewing. It shares similar fermentation characteristics with other popular strains such as Wyeast 1056 (American Ale) and White Labs WLP001 (California Ale).

Here are some key features of Yeast US-05:

1. Fermentation Properties: Yeast US-05 exhibits fermentation properties that are typical of American Ale strains. It is known for producing clean and crisp flavors, making it suitable for a wide range of beer styles.

2. Sedimentation: This yeast strain has a low to medium sedimentation rate, which means that it settles relatively well during the brewing process. This can be advantageous for brewers who desire clear beers.

3. Final Gravity: Yeast US-05 typically results in a medium final gravity. This refers to the specific gravity of the beer at the end of fermentation, indicating the amount of residual sugars remaining.

4. Temperature Range: The recommended fermentation temperature for Yeast US-05 is between 64 and 74 degrees Fahrenheit (18-23 degrees Celsius). Staying within this range helps ensure optimal yeast performance and desired flavor profile.

Yeast US-05 is a dried American Ale strain widely used in brewing. It offers fermentation characteristics similar to other popular American Ale strains and is known for producing clean and crisp flavors. With its low to medium sedimentation rate and medium final gravity, it is a versatile choice for brewers aiming to create a wide variety of beer styles.

us 05 yeast

What Temperature Does US-05 Yeast Ferment At?

US-05 yeast, a popular strain of ale yeast, ferments within a temperature range of 12-25°C (53.6-77°F). For optimal results, it is recommended to ferment at temperatures between 15-22°C (59-71.6°F). This temperature range provides a suitable environment for the yeast to metabolize sugars and convert them into and carbon dioxide during the fermentation process.

Maintaining the proper fermentation temperature is crucial for producing desired flavors and aromas in the final beer product. Fermenting at lower temperatures towards the lower end of the range can result in a clean and crisp flavor profile, while fermenting at higher temperatures towards the upper end of the range may lead to increased ester production, resulting in more fruity or spicy flavors.

To ensure accurate temperature control during fermentation, it is recommended to use a temperature-controlled fermentation chamber or wrap the fermentation vessel with insulation or a heat source, depending on the desired temperature.

US-05 yeast ferments best within a temperature range of 12-25°C (53.6-77°F), with the ideal range being 15-22°C (59-71.6°F). Monitoring and controlling the fermentation temperature is essential for achieving desired flavors and characteristics in the final beer product.


Safale US-05 yeast is a highly versatile and reliable strain for American Ale style beers. It is a dried yeast that provides fermentation properties similar to popular liquid yeast strains such as Wyeast 1056 or White Labs WLP001.

One of the key features of US-05 is its wide temperature range for fermentation. It can work effectively at temperatures ranging from 64-74°F (18-23°C), with the ideal range being 15-22°C (59-71.6°F). This flexibility makes it suitable for various brewing setups and allows brewers to achieve desired flavors and characteristics in their beers.

US-05 is known for its low to medium sedimentation, which means it settles relatively quickly at the bottom of the fermenter, making it easier to separate from the beer during the clarification process. This can be particularly useful for homebrewers who want to achieve a clear and clean final product.

Compared to other yeast strains, US-05 is often favored for its clean fermentation profile. It produces minimal fruity or estery flavors, resulting in a crisp and neutral taste. This makes it an excellent choice for brewing a wide range of beer styles, including American Pale Ales, IPAs, and American Ambers, where a clean and well-balanced flavor profile is desired.

Furthermore, US-05 has a relatively high attenuation rate, meaning it can consume a significant amount of sugars during fermentation. This results in a drier and more attenuated beer with a medium final gravity.

Safale US-05 yeast provides brewers with a reliable and consistent fermentation option. Its versatility, clean fermentation profile, and ability to work well across a range of temperatures make it a popular choice for both homebrewers and commercial brewers alike. Whether you're a seasoned brewer or just starting out, US-05 is a yeast strain that can help you achieve excellent results in your brewing endeavors.

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Thomas Ashford

Thomas Ashford is a highly educated brewer with years of experience in the industry. He has a Bachelor Degree in Chemistry and a Master Degree in Brewing Science. He is also BJCP Certified Beer Judge. Tom has worked hard to become one of the most experienced brewers in the industry. He has experience monitoring brewhouse and cellaring operations, coordinating brewhouse projects, and optimizing brewery operations for maximum efficiency. He is also familiar mixology and an experienced sommelier. Tom is an expert organizer of beer festivals, wine tastings, and brewery tours.