{"product_id":"mangrove-jacks-beer-yeast-california-lager-m54","title":"Mangrove Jacks M54 California Lager Yeast 10g","description":"\u003cp\u003eM54 is the practical lager yeast — designed to produce clean, lager-like character at normal ale fermentation temperatures (17–23°C). No cold fermentation required. If you want lager character without the ability to hold a fermenter below 15°C for weeks, M54 is the answer.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBest Suited To\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalifornia Common (Steam Beer), American Lager\u003c\/li\u003e \u003cli\u003eCream Ale, Blonde Ale\u003c\/li\u003e \u003cli\u003eAny beer where a clean, crisp finish is the goal without cold fermentation equipment\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eSpecs\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cstrong\u003eFermentation temp:\u003c\/strong\u003e 17–23°C (ale temperature, lager result)\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eAttenuation:\u003c\/strong\u003e High\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFlocculation:\u003c\/strong\u003e High\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eAlcohol tolerance:\u003c\/strong\u003e Up to 9% ABV\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePitching rate:\u003c\/strong\u003e 1 sachet per 23L at standard gravity\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eWhen to Choose M54\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eChoose M54 over M84 or M76 when you do not have cold fermentation capability. M84 and M76 produce better results at 8–14°C but stall and produce off-flavours if fermented warm. M54 is specifically designed for warm-fermentation lager.\u003c\/p\u003e \u003cp\u003eChoose M54 over M24 Versa Lager when you have no cooling at all and must ferment at normal ale temperatures (17–23°C). M24 performs best with some cooling (10–18°C); M54 is the right choice when there is no cooling available.\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePractical Notes\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eA cold crash after primary fermentation significantly improves clarity with M54, even though primary fermentation was at ale temperature. One week at 2–4°C after primary gets you noticeably closer to lager clarity.\u003c\/p\u003e \u003cp\u003eM54 may produce a light sulfury note during active fermentation — normal for lager strains, dissipates during conditioning.\u003c\/p\u003e \u003cp\u003ePitch at 18–20°C and hold steady. Above 23°C the lager character begins to drop away.\u003c\/p\u003e \u003cp\u003eKeep refrigerated. Once opened, reseal and use within 7 days.\u003c\/p\u003e \u003cp\u003e\u003cem\u003eReviewed by the AHB Brewing Team — June 2026.\u003c\/em\u003e\u003c\/p\u003e","brand":"Mangrove Jack's","offers":[{"title":"Default Title","offer_id":41994565189709,"sku":"25012","price":9.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8306\/0045\/files\/25012_66353294-8ea3-43d2-b267-2908d9a488b8.jpg?v=1754053245","url":"https:\/\/www.australianhomebrewing.com.au\/products\/mangrove-jacks-beer-yeast-california-lager-m54","provider":"Australian Home Brewing","version":"1.0","type":"link"}