SafAle S-04 is a popular dry ale yeast chosen by homebrewers and craft brewers for its speed, reliability and clean flavor profile. This pack includes six individual 11.5 g sachets, giving you enough yeast for multiple batches or for keeping a reliable English style ale strain on hand.
S-04 performs well across a broad range of beer styles with roots in both American and European traditions. It is especially well suited to ales where you want moderate ester character and a well rounded profile, such as bitters, stouts, porters, brown ales and many pale ales. When fermented within its recommended temperature range, it delivers complex yet balanced beers that showcase both malt and hops.
One of the defining characteristics of SafAle S-04 is its strong flocculation. The yeast tends to settle out quickly after fermentation, forming a compact sediment layer at the bottom of the fermenter. This helps beers clear faster and can simplify transfers, bottling and kegging by leaving more of the yeast behind.
S-04 is also known for its fast fermentation kinetics, often completing primary fermentation quickly under proper conditions. This makes it a good choice when you want to turn around small batches efficiently, while still achieving reliable attenuation and a polished end result.
Key features:
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SafAle S-04 dry ale yeast
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Six 11.5 g packets per package
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Suitable for a wide range of American and European style ales
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Produces complex, well rounded flavor profiles with moderate esters
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High flocculation, forming a tight sediment layer for clearer beer
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Fast fermenting when used within recommended temperature ranges
Suggested uses:
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English bitters, pale ales and ESBs
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Porters, stouts and brown ales
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Many American and European inspired ales where a clean, balanced profile is desired
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Everyday house ales and small batch experimental brews
Always follow the manufacturer’s guidance for rehydration, pitching rate and fermentation temperature. Use proper sanitation practices, aerate wort as recommended and monitor fermentation progress to ensure consistent, high quality results from each packet.