Mangrove Jack M15 Empire Ale Dry Yeast

Item Number: 29-10549

Sale price$6.99
Only 8 units left!Eligible for Fast & Free Delivery


Scottish Heavy Ales, American Amber Ales, Sweet Stouts
Empire Ale Mangrove Jack


Species : Ale
Fermentation Temp Range ( °F) : 64-72
Apparent Attenuation Range (%) : High
Flocculation : High
Alcohol Tolerance : Medium

Pitching/Fermentation : Sprinkle contents directly on up to 23 L (6 US Gal) of wort. For best results, ferment at 18-22 degrees C (64-72 degrees F).
Storage Recommendations: Store in the fridge

Notes : Suitable for a variety of full bodied ales, with exceptional depth, this is a top-fermenting ale yeast. Ferments with full, rich dark fruit flavors.
Suitable for Scottish Heavy Ales, American Amber Ales, Sweet Stouts and more.

Best Styles : Scottish Heavy Ales, American Amber Ales, Sweet Stouts

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 : White Labs 002, Wyeast 1968
Dry Yeast Substitution : Windsor, Nottingham BRY-97 American West Coast Ale Yeast (Danstar)

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Customer Reviews

Based on 4 reviews
Kevin Sullivan
Good British ESB/Brown/Mild Ale Yeast

Listed in the description as a High Attenuator but is actually a Low-Medium, likely that people saying it's stalled out have instead reached attenuation for the yeast. The profile is similar to the London ESB/Windsor style, and also a really great yeast for ciders if you like a semi-sweet finish with a good ester profile.

Stalls Out / Stuck Fermentation

This yeast took off fast! .. but then it stalled out / stuck fermentation at around 1.022 for a British Brown ale with starting gravity of 1.051 I tried bumping up the temperature to 74, rousing the yeast and letting it go longer - no luck. I was scratching my head trying to figure out what went wrong this one particular time with this one particular yeast. So, I did a little digging and this yeast is notorious for stalling out. Honestly, I'll never use it again and will look elsewhere for alternative yeast substitutes. Pros: - Quick starter for fermentation - Made an excellent British Brown, but a little sweet for style because of the high FG

Abraham Maurice
Failed to proof

Tried to proof a packet of this yeast for a batch and it never activated so I took a different type of mangrove jack yeast which did activate immediately and used that instead.

Steve Morton
Excellent working yeast

It's getting warmer, so I chose dry yeast for this batch. Made a Scottish for my Dad's birthday, and this yeast didn't disappoint. It gave a fast, strong fermentation that completed in the primary in 4 days. Sampling as it went into the secondary, then into the kegs, showed these little brewing soldiers were doing their best to give a great tasting brew. I made a starter for this batch, and saw activity within 24 hours on the blowoff tube.

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