M15 Empire Ale Yeast – 10G

$6.50

Mangrove Jacks M15 is an ideal ale yeast for top-fermentation, perfect for crafting a range of robust, full-flavored ales. It ferments to yield a profound, complex profile with lush, dark fruit tones.

Best before on this batch – 10/25

Out of stock

$5 letter post Australia-wide (up to 8 packs)
Free local pickup in Noble Park, VIC
Real best-before dates: what you see is what ships

Description

Mangrove Jack’s M15 Empire Ale is the English yeast specialist in the MJ Craft Series, formulated to produce full-bodied ales with rich dark fruit character — plum, dried fig, and toffee — backed by a warm, rounded malt backbone. It’s the natural choice for any brewer seeking the structural depth and restrained complexity that defines British ales at their best, from every-session bitters to cellar-worthy barleywines.

Parameter	Range
Fermentation Temperature	18–22°C
Apparent Attenuation	71–75%
Flocculation	High
Alcohol Tolerance	~10% ABV
Format	10 g sachet

Brewing Notes

M15’s relatively low attenuation range (71–75%) is a feature, not a limitation — it leaves a fuller, rounder body with greater residual malt sweetness, which is exactly right for the style. Ferment at the lower end of the range (18–19°C) for a restrained, clean English character; stepping up to 21–22°C encourages more pronounced fruity ester production, which suits richer, darker styles. High flocculation means the yeast drops out quickly — expect bright beer within 3–5 days of krausen fall, often without any fining.

Beer Styles & Brewing Tips

ESB & Extra Special Bitter — M15’s defining application; the rich ester profile and full body bring warmth and complexity without sweetness dominating.
Brown Ale & Old Ale — low attenuation + dark malts = deep toffee and dried fruit character that ages beautifully in the bottle.
Porter & Stout — ferment on the cooler side for a cleaner roast character; the body M15 leaves behind supports a rich, satisfying texture.
English Barleywine — alcohol tolerance to 10% ABV, full body, and slow, clean attenuation make M15 well-suited to strong and aged styles.

In the Glass: Amber to chestnut brown with a cream-coloured, persistent head. The nose leads with biscuit malt, dried dark fruit, and a whisper of toffee. On the palate it’s full, smooth, and satisfying — distinctly British in character, finishing with just enough dryness to keep each sip drinkable.

Mangrove Jack’s M15 Empire Ale is in stock and ships Australia-wide. Questions about pairing with grain bills or alcohol targets? Get in touch with the Yeast Platform team.

Recommended Hops for This Yeast

M15’s rich, malty English character is best complemented by traditional British varieties or American hops used with restraint — balance rather than bitterness-forward profiles.

East Kent Goldings — the classic English partner; floral, earthy, and honeyed — ideal for bittering and late additions in ESB
Chinook — pine resin and grapefruit; adds assertive backbone to robust porters and stronger bitters
Cascade — citrus-floral; bridges the traditional English profile and modern American-influenced styles beautifully
Amarillo — orange and tangerine; lifts the ester complexity in brown ales and old ales without overpowering the malt