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Mangrove Jacks Craft Series French Saison Yeast M29

Mangrove Jacks Craft Series French Saison Yeast M29

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M29 French Saison is a highly attenuative top-fermenting ale yeast for farmhouse beers. It creates distinctive saisons with spicy, fruity and peppery notes and a very dry finish.

What it brings to your beer

  • Spicy, fruity and peppery farmhouse character
  • Very high attenuation for a dry, refreshing beer
  • Handles saisons and farmhouse beers up to 14% ABV
  • Likes warm fermentations

Specifications

  • Type: top-fermenting ale yeast
  • Attenuation: very high (85-95%)
  • Flocculation: medium
  • Fermentation temperature: 26-32°C
  • Dose: one sachet for up to 23 litres of wort

How to use it

Sprinkle directly onto up to 23 litres of wort and ferment warm, at 26-32°C. A heat belt makes it easier to hold that temperature. Store sachets in the fridge.

Ideal for brewers who want a classic saison or a dry, spicy farmhouse ale, and a useful strain for summer brewing when the house is warm.

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

Frequently Asked Questions
What temperature does M29 like?

It is a warm fermenter: Mangrove Jack's recommends 26-32°C for best results.

How strong a beer can it ferment?

It is suitable for saisons and farmhouse beers up to 14% ABV.

How much wort does one sachet treat?

Up to 23 litres.

Will it make a dry beer?

Yes. Attenuation is very high (85-95%), so saisons finish dry.

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Yeast Specification

📉Very HighAttenuation
🌡️26–32°CTemp Range
🫧LowFlocculation
🍷14%ABV Tolerance
🔬 SpeciesSaccharomyces cerevisiae var. diastaticus
⏱️ Fermentation SpeedFast
➕ Pitch Rate10–12g/20–30L
🎯 Recommended ForSaison/Farmhouse
See all specifications (7 more)
🍑 Ester ProfileHigh - Pepper/Lemon
🌿 Phenolic ProfileStrong Phenolic
🌱 Hop PairingsSaaz/Hallertau
🌾 Malt PairingsPilsner/Wheat
🍺 Similar BeersDupont-style Saison
❄️ Storage Temp4°C
📅 Shelf Life24 months