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Safale S-04 Ale Dry Yeast


SKU# Y007

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English ale yeast with fast fermentation high flocculation. Recommended a large range of ale beers and is specially well adapted to cask-conditioned ales.


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Product Details

A well-known English ale yeast, selected for its fast fermentation character and its ability to form a very compact sediment at the end of the fermentation, helping to improve beer clarity. This yeast is recommended for the production of a large range of ale beers and is specially well adapted to cask-conditioned ales and fermentation in cylindroconical tanks. High sedimentation. Optimum temp: 64°-75° F

Additional Information
Permanent Stock Message No
Temporary Stock Message No
Yeast Format Dry
Yeast Style N/A
Min Fermenting Temp 64
Max Fermenting Temp 75
Flocculation High
Min Attenuation % 72
Max Attenuation % 75
4.6 / 5.0
47 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
reply to William H negative review
William H...the yeast didn't ruin your beer. You did! :-)70 degrees is too warm for this yeast if you want a neutral profile. You should be fermenting near 64 degrees (fermenter temp, not ambient temp) if you want a clean profile.One packet is enough for a beer of 1.050 or less. If you brewed a higher gravity beer you may need to pitch more.Double check your brewing practices before you blame it on the yeast! ;-p
May 6, 2016
No muss, no fuss, no starter no need to re-hydrate. Short lag time and fast efficient fermentation. Have been using this for years with excellent results.
December 30, 2012
good stuff
This IS my imperial stout yeast. I also used it in a mild that turned out pretty good
March 10, 2012
Follow up on previous
Ok, I previously reported that the yeast blew off the blow off tube. Well in only a couple days fermentation of my Dry Irish Stout was complete, racked to secondary for another week and half then to my corny keg. Tried beer just before Christmas and wasn't ready, but only days later and it is spot on. From Primary to drinkablility in less than 6 weeks. Very impressed with this yeast. May never buy Guinness Pub Cans again...
December 29, 2012
Excellent for Ordinary Bitter
1.041 to 1.010 in three days @ 66F. I sprinkled it into the wort without rehydrating. Took a sample tonight and it's fantastic! I mean this beer will be ready to keg and drink after only a week. Don't hesitate to try this yeast.
March 21, 2013
A workhorse....
We use this yeast in our brewpub here at Cave Mountain Brewing Co. in Windham NY. It ferments quickly without off flavors even when ferment temps get in the high 70's and low 80's. Homebrewers with problems with high ferment temps should try it if their looking for a "house strain". Can be reused at least 5 times without changes to it's profile.
January 15, 2010
Great Yeast - favorite overall - so far...
I've used this yeast on many different types of Ales: Irish Red Ales (OG 1.046), Winter Ale (OG 1.081) and have had success each time. Had a massive blow out on the Winter Ale... but it ended up with a FC of 1.015... no starter either...
January 15, 2016
Worked well
I've used this product a couple times now and never had bad results.
November 13, 2013
I realy like this yeast for y brew at 70-72 degrees it realy cooks ive used red starr for years might switch
March 21, 2017
5 months ago
Made a huge yeast cake. Tasted good, drinking the rest Paddy's Day 2014
February 12, 2014
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Browse 2 questions Browse 2 questions and 4 answers
I recently used one packet of this to make a 5 gallon batch of cider which came out great. Does anyone have any suggestions for scaling this up? Lets say I wanted to do 250 gallons, would I need to use 25 packets or the equivalent in larger packaging? Do yeast cultures multiply at a rate which would require fewer packages of dry yeast for a larger batch of cider? Thanks.
E R on Oct 17, 2015
BEST ANSWER: I agree with Kevin, I think the packet count would be somewhere between 40 and 50 (take a look at the pitching rate calculator at http://www.mrmalty.com/calc/calc.html) so a starter would be one way to go. I think it is a 4 liters of slurry which is a bunch of slurry. I'd likely do a series of starters to get to that (1 liter, 2 liter, 3 liter, then 4 liter, etc.) Have not done that with cider, nor with dry yeast though so I'd ask around a bit. Might be worth looking at whether you can buy a larger pitch than the small packet to avoid the risk of contamination that the starters would present.
I'm wanting to brew a pumpkin ale recipe that calls for English Ale White Labs WLP002 yeast but I'm worried about shipping with it 95 degrees in south Mississippi. Would this be a good dry substitute?
V A on Aug 4, 2016
BEST ANSWER: Yes! S-04 is a great substitution for almost any English variety of yeast.

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