DetailsYeast: Safale S-04 (Saccharomyces cerevisiae)
A well-known, commercial 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 cylindro-conical tanks. Sedimentation: high. Final gravity: medium.
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4.9 / 5.060 ReviewsGreat, basic yeastThis yeast is a lot like the US-05. It too is a cheap dry yeast that gets the job done with a single packet. The S-04 leaves a bit of spice, unlike its super-clean-fermenting cousin, but nothing over-the-top. The downside to this is that, like the US-05, the S-04 won't give you some of the complex characteristics that you might get out of flavorful strains of liquid yeast. But if you're brewing a beer that doesn't emphasize yeast profile too much, and you want just a little bit more character than the ultra-clean US-05, the S-04 is an excellent choice. I use it in many of my weaker English alesFebruary 9, 2014good choice for english alesThis yeast is a nice choice for any English style ale.October 30, 2010Very Aggresive YeastLast Saturday I re-hydrated this yeast for 30 minutes in 90 degree water. I splashed my wort and stirred to aerate. I pitched around 5:00 PM and moved my 6.5 gallon bucket to dark warm room. The wort temp was 66 degrees and the room was 67 degrees. The next day around 3:00 PM it nearly blew the cover off the primary bucket._x000D__x000D_I ran to the hardware store and picked up some 1/2" tubing to make a blow off tube. When I left for work on Monday it had settled down and was still bubbling away at a fierce pace._x000D__x000D_Every time I have used this yeast there has always been a nice firm yeast cake on the bottom and attenuation has been around 75-77%. Safale S-04 does a great job, just be ready for some aggressive fermentation!_x000D__x000D_I have dry pitched in the past and it seems to work much better if you re-hydrate for 30 minutes. I will purchase the yeast again.February 10, 2014Holy krausen Batman!!!!Wow. All I can say is wow._x000D_Pitched in an English Brown Ale at ~10pm @ 70 degrees F, OG of 1.050. No starter. Nothing._x000D__x000D_By 5pm the following afternoon the krausen had been spouting away so much that my gallon water jug blowoff container was half full of beer and the rest was full of krausen and right about to spout over!!!_x000D__x000D_I will use this again in a heartbeat. _x000D__x000D_August 31, 2011Fantastic yeastI have used S-04 in both home and commercial settings with excellent results. Always pitched dry, never rehydrated. Quick starts as a rule, vigorous fermentations. Clears very well when cold conditioned. Makes a good tasting beer.November 16, 2011VIOLENT FermenterI selected the "premium yeast" no additional charge option when I ordered my last recipe kit, Octane IPA. This was my first and only time (so far) using this yeast. _x000D__x000D_It should be noted that I boiled 6 gallons of water to brew, and wound up with a total volume of 5.5 gallons in the fermentation bucket...so I had less head space than I should have. _x000D__x000D_I rehydrated the yeast prior to pitching it._x000D__x000D_The morning after brewing, I noticed the air lock bubbling faster than I'd ever seen before. I went to work expecting to come home to a mess of krausen bubbling out of the airlock. _x000D__x000D_Not only had the krausen come out of my three piece airlock, it clogged the tiny vent holes in the air lock lid, blew the air lock out of the fermentation bucket lid (the air lock had landed on a pantry shelf), and blew the lid off the fermentation bucket! _x000D__x000D_I scraped off the top layer of krausen and cleaned everything up, resealed the lid, and a steady stream of bubbles was coming out of the air lock! Krausen started bubbling out of the air lock less than half an hour later, so I simply removed the lid to my three piece airlock and let it do it's thing. _x000D__x000D_After three days since brewing, the bubbles had almost stopped. It had taken my IPA from 1.061 SG to 1.016 SG!_x000D__x000D_I keep my house between 65 and 70 degrees Fahrenheit in the winter. _x000D__x000D_I'm ALMOST scared to use this yeast again. Almost.November 27, 2011ferment at cooler tempthe thing is, if your room temp is around 70 then your actual fermentation temp will be at least 4-5 degrees higher.at these temps this yeast will go crazy and will go on a feeding rampage. this is NOT the best way to use this yeast. ferment low, around 60 room temp or use a swamp cooler for a more steady,smooth fermentation. i use 2 packs in my stout and never had to use a blow off tube.higher temps =faster fermentations=possible off flavors,among other issues.i love s-04, its my go to yeast for dark beers. HAPPY BREWING!!!January 7, 2012great ale yeastI've used this for years but its not the yeast to use in the new style cheap kits with a bucket fermentor and air lock. use a carboy primary and blow off hose.March 23, 2012good choice for dry yeastI have used this yeast three times, both as a starter and rehydrated and pitched. Both methods produced rapid, strong fermentation, complete in about four days. Lots of sediment but very compact, almost jelly-like.April 26, 2012Very healthy fermenter and nice tasteThis is my go to yeast now. I mostly do American Amber brews. I use some british adjunct grains and this yeast._x000D__x000D_I get a decent british style flavor and really fast and clean fermentation. _x000D__x000D_I ferment 5.25 gallons in an old refrigerator set for 64 F. I use a blow off set up on a bucket. No problems with it so far. This yeast is very vigorous._x000D__x000D_In the winter where this refrigerator stays the room temperature is sometimes around 59 F. The yeast slows down but still makes a fine beer.May 12, 2012
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