Mangrove Jack M44 U.S. West Coast Dry Yeast

Item Number: 29-10541

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American Pale Ale, American double IPA, American Imperial Stout
US West Coast Mangrove Jack


Species : Ale
Fermentation Temp Range (°F) : 59-74
Apparent Attenuation Range (%) : High
Flocculation : High
Alcohol Tolerance : Medium

Pitching/Fermentation : A top fermenting ale strain suitable for American style ales. This yeast produces an exceptionally clean flavour, ideal for when you want the hop character to really punch through
Suitable for American style pale ale, American double IPA, American style imperial stout and more.
Usage Directions: Sprinkle contents directly on up to 23 L (6 US Gal) of wort. For best results ferment at 18-23 degrees C (59-74 degrees F).
Storage Recommendations: Store in the fridge

Notes : A top fermenting ale strain suitable for American style ales. This yeast produces an exceptionally clean flavour, ideal for when you want the hop character to really punch through.

Best Styles : American Pale Ale, American double IPA, American Imperial Stout, and more

Looking for a Liquid or Dry Yeast Substitution? The brewers at Adventures in Homebrewing have tried most of them. The following are some suggestions that have worked for us.
Liquid Yeast Substitution : Wyeast 1056, White Labs 001
Dry Yeast Substitution : Nottingham, London ESB, Fermentis Safale US-05

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Customer Reviews

Based on 7 reviews
Slow but finishes as expected

I use this yeast exclusively on my homegrown fresh hop pale ale each year, and it never disappoints. Kicks in within 12 to 18 hours and drops the gravity fairly quickly, but takes a long time to finish. Still get a bubble here and there in the airlock after about a week. Transfer to secondary and the gravity still drops a few more points. Expect two to three weeks in tank(s) before packaging. However, this yeast yields a nice clean base to let your malts and hops flourish.

Great Yeast

Used this for a citra driven pale right in time for the hot summer days ahead. Fermented great, incredibly active even at lower temps (fermented at 62) and even then it blew my fermenter. Definitely don't mind the clean-up since it worked so great, clean finish, no added flavors, settled great and allowed the malt and hops to shine. I will definitely be utilizing this again.

Good and Strong yeast

I put this yeast into an all grain IPA, made a slurry and pitched at 80 degrees. I had high krausen in 7 hours. Read reviews of it taking up to 48 hours to start which is insane. It finished to .012 from .051, in 3 days. Cleared quickly in the bottle. have not tasted yet as am at week 3. Performace honestly was similar to Muntons Gold, With Gold giving massive krausen in 4 hours. This is a good and solid yeast. Oxy up the wort, it should never take a yeast 48 hours to show a starting.

Michael P
Mangrove Jack's yeast

Super impressed. This will now be my go to for dry packs. I made a fairly high gravity Americanized ESB (5 gal) on 4/14 and pitched the West Coast Yeast in my 1/2 barrel Kegmentor. Got the expected lag but when this stuff took off WOW. My blowoff rune was going crazy. Curiosity killed me so I took a peek in. Krausen was 2/3 up the keg walls. If I had done this in a 6 gal fermentor I would have had a heck of a blow off. Took a gravity reading today and its close to 1.01 bubbler is still popping off occasionally. Took a little taste of the sample beer. Very clean and nice and dry, No syrupy taste like I was shooting for. Give it a go, I think you'll be very pleased.

Give the Stuff a Try and Ignore the Lag Time

This has become my go to yeast. I make a lot of clean beers that require very high attentuation, and this stuff nails it. I typically use the low 60's, though it works just as well higher. It will ferment even at 58F once it's going. I have an Imperial IPA on tap now that finished at 8.2% and a final gravity of 1.010 using this stuff. Can't say enough good things. Don't be alarmed, though. It usually has a disconcertingly long lag time. It takes longer than any other I've used, typically a day and a half. Don't worry, the stuff does great. A side note: If you mix this half and half with the Mangrove Jack British Ale yeast, you can make a dynamite session. That combo ferments quickly and cleanly to a low final gravity in under a week, even in the low 60s.

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