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Mangrove Jack's Bohemian Lager - M84

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A bottom-fermenting lager strain suitable for European lager and pilsner style beers. This yeast will produce soft, delicate and balanced beers with a dry and clean palate.

Suitable for German/ Bohemian pilsners, all lager styles, German bocks and more

Attenuation: High

Flocculation: High

Usage Directions: Sprinkle directly on up to 23 L (6 US Gal) of wort. For best results, ferment at 10-15 degrees C (50-59 degrees F).

Storage Recommendations: Store in the fridge.

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  • 2
    Very slow starter

    Posted by G on 12th Dec 2022

    I picked this up in a pinch due unavailability of other bohemian lager strains for a czech pils. Did a split batch with this and a liquid strain, which started in less than 24hr. Despite using 2 packs for a lower OG, this yeast took over FIVE DAYS to show signs of fermentation. And because I was attempting a traditional open ferment, the lag contributed to the batch picking up a lacto infection and getting dumped. Conversely, the portion fermented with the liquid yeast performed perfectly. After a good deal of research, it sounds like nearly all Mangrove Jack offerings have a very long lag time. I'll be avoiding MJ in the future.

  • 5
    Very nice yeast

    Posted by Steve M on 24th Mar 2014

    The first time I used this yeast my Bohemian Pilsner scored a 38 in a large contest with the beers faults having nothing to do with the yeast. I fermented at 50 degrees 10 days and did a rest before the secondary. They recommend pitching 2 packs for a 5 gallon batch but I only pitched 1 as I only did not notice you should use 2 until the day I was brewing and still had good results. This yeast Can product award winning results. I think it works better for me than 34/70.