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Mangrove Jacks Craft Series New World Strong Ale Yeast M42

Mangrove Jacks Craft Series New World Strong Ale Yeast M42

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M42 New World Strong Ale is a top-fermenting ale yeast for ales of all strengths. It ferments with a neutral aroma so the full character of your malt and hops comes through.

What it brings to your beer

  • Neutral yeast aroma that lets malt and hops lead
  • Copes with ales of all strengths
  • Very high flocculation for bright beer
  • Suits IPAs, porters, Russian imperial stouts and more

Specifications

  • Type: top-fermenting ale yeast
  • Attenuation: high (77-82%)
  • Flocculation: very high
  • Fermentation temperature: 16-22°C
  • Dose: one sachet for up to 23 litres of wort

How to use it

Sprinkle the sachet directly onto up to 23 litres of wort and ferment at 16-22°C. Store in the fridge.

A dependable workhorse for brewers who make big beers like imperial stouts and strong IPAs, and want a clean result every time.

Compare this against every beer & cider yeast we stock or read the full beer yeast technical specifications.

Frequently Asked Questions
Is M42 good for strong beers?

Yes. It is suited to ales of all strengths, including Russian imperial stouts.

Does it add much flavour?

No. It has a neutral yeast aroma, so the malt and hop character stays prominent.

What temperature should I use?

Mangrove Jack's recommends 16-22°C, with one sachet for up to 23 litres.

How do I store it?

Store it in the fridge.

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Yeast Specification

📉HighAttenuation
🌡️16–22°CTemp Range
🫧HighFlocculation
🍷12%ABV Tolerance
🔬 SpeciesSaccharomyces cerevisiae
⏱️ Fermentation SpeedFast
➕ Pitch Rate10–12g/20–30L
🎯 Recommended ForIPA/Russian Imperial Stout
See all specifications (7 more)
🍑 Ester ProfileLow - Neutral
🌿 Phenolic ProfileNone
🌱 Hop PairingsColumbus/Centennial
🌾 Malt PairingsPale/Munich
🍺 Similar BeersStrong British ales
❄️ Storage Temp4°C
📅 Shelf Life24 months