Mangrove Jack's M44 - US West Coast Yeast 10g
Mangrove Jack's M44 West Coast Yeast - For Clean, Hoppy American Ales
Mangrove Jack’s M44 is a go-to dry yeast for clean, crisp American-style beers where you want the hops to shine.
Whether you’re brewing an IPA, a pale ale, or pushing into double territory, this yeast keeps things neutral in the best way — no weird esters, no fruity surprises.
Just good attenuation, steady fermentation, and a nice dry finish.
If you’ve used liquid strains like US-05 or WLP001, this is in that same family — but easier to handle and store.
What This Yeast Does & How to Use It
M44 is made for hop-forward beers. It ferments clean, drops out well, and doesn’t get in the way of late hop additions or dry hopping.
Attenuation is high, usually around 77–85%, so your beer finishes dry and crisp — exactly what you want in a West Coast or American IPA.
Pitch it straight into cooled wort (no need to rehydrate, though you can if you want), and keep fermentation between 18–23°C.
Expect a fast start and reliable finish. Good flocculation means it'll clear up fairly well on its own too.
Specs
| Yeast Type: | Dry Ale Yeast |
| Strain: | West Coast US-style |
| Flavour Profile: | Clean, neutral |
| Attenuation: | 77–85% |
| Flocculation: | Medium to High |
| Alcohol Tolerance: | Up to 12% ABV |
| Temp Range: | 18–23°C |
| GMO/Gluten-Free: | Yes |
| Pack Size: | 11g sachet |
A Brewer's Tip
If you’re brewing a big IPA with lots of hops, chill your wort to 18–19°C before pitching — this keeps ester production low and helps M44 stay nice and neutral.
And don’t rush it. Even if your hydrometer tells you it’s done in 5 days, give it a full two weeks. That last bit of clean up makes a difference in clarity and flavour.
Frequently Asked Questions
- Can I use M44 for lagers?
- Not really. It’s a top-fermenting ale yeast, so it won’t give you that clean, crisp lager profile. Stick to proper lager strains for that.
- Do I need to rehydrate it?
- Nope — you can sprinkle it directly on the wort. Rehydrating is optional but not required for good results.
- Is it reusable?
- You can harvest and reuse it, though most people just use a fresh sachet. If you do reuse, make sure you sanitize well and avoid contamination.
- Does it affect hop flavour?
- That’s why people use it — it stays out of the way so your hops come through clearly, especially in late additions and dry hopping.
- How long does it keep?
- If stored cold and sealed, the sachet will keep for at least 12–18 months. Check the best-before date on the pack.
