Lallemand Sourvisiae Brewing Yeast 10G

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man and woman brewing beer

Your Lallemand Sourvisiae Brewing Yeast is a bioengineered ale yeast strain (Saccharomyces cerevisiae) that produces lactic acid during fermentation and will impart a strong citrus quality to your beer. Sourvisiae contains a single genetic modification, a lactate dehydrogenase gene from a food microorganism perfect for sour beers. 

Yeast Specs:

Beer Syles: Sour Ale
Aroma: Tangy, Sour, Slightly fruity
Attenuation: Med-High
Fermentation Range: 50-72°F (10-22°C)
Alcohol Tolerance: 12% ABV
Flocculation: High




If you are purchasing Your Lallemand Sourvisiae Brewing Yeast, you might need more grain!  


Hops is the main bittering agent in beer. You can select from a huge line of hop varietals from Hop Union to suit any brewers needs. The freshest hops for your next homebrewing endeavor. All hops are from YHC. 

malt extractMalt Extracts

View liquid and dry malt extracts here. 

brew-pot.pngBrew Pots

The pot pictured is an 8 gallon pot that is perfect for a beer kit or a standard 5 gallon batch. 

wart-chiller.pngWort Chillers and Thermometers

Wort Chillers and Thermometers are long term investments. It is important to chill your wort quickly. The quicker you chill it the stronger the cold break will be. You also need a good thermometer because high powered boiling changes more rapid temperature fluctuations. 


Auto-siphons are a great luxury item to have in your brew equipment. Once you have one you will never go without one again. Don't forget to use a heavy duty sanitizer to clean it since you don't want to replace it as often as hoses. A good sanitizer for that job is Five Star San. 


 If you are using Lallemand Sourvisiae Brewing Yeast, you are getting ready to ferment some beer. Here's a link to our fermenter equipment. 


 Many people reuse their hoses for far too long. Replacing your hoses often or even using as single use items is highly recommended with beer making. 


Pouring your wort into a carboy can be tricky. Use a big funnel made just for the job. They even have different mesh screens to remove particles.  


All that healthy yeast is going to make a lot of gas especially with the high activity of Your Lallemand Sourvisiae Brewing Yeast. You'll be needing an airlock to let it out, and not let anything in. It is recommended to replace airlocks often. Because they never physically touch the beer, the sanitation risk is too often overlooked. Bacteria can spread without physical contact in a closed environment and plastic stubbornly harbors bacteria.

yeast-starter.pngYeast Starters

Making a yeast starter is a great way to avoid stuck fermentation and also get high yeast counts that allow the final cells to clean up after themselves, reducing off flavors and aromas. Higher populations means less yeast stress and less risk of off-flavors.  They help make better beer and can be used with Your Lallemand Sourvisiae Brewing Yeast. Use the right equipment to make the job easy. Flask, Foam Stopper, and Airlock. 





Beer may have been made in Neolithic Europe as long as 5000 years ago.



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