{"product_id":"saf-ale-s04-yeast-11g","title":"Fermentis SafAle S-04 English Ale Yeast 11g","description":"\u003cp\u003eS-04 is the go-to English ale yeast for brewers who want malt character, full body, and a beer that clears fast without fining. Its very high flocculation drops the yeast out of suspension quickly, leaving a firm sediment and a bright, malt-forward beer with residual sweetness intact.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBest Suited To\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEnglish Bitter, Extra Special Bitter (ESB), English Pale Ale\u003c\/li\u003e \u003cli\u003ePorter, Stout, Brown Ale, Mild\u003c\/li\u003e \u003cli\u003eAny British ale where malt character and quick clarification matter\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 15–22°C (optimal 18–20°C)\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eAttenuation:\u003c\/strong\u003e 73–77%\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eFlocculation:\u003c\/strong\u003e Very High\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003eAlcohol tolerance:\u003c\/strong\u003e Up to 11.5% ABV\u003c\/li\u003e \u003cli\u003e \u003cstrong\u003ePitching rate:\u003c\/strong\u003e 50–80g per 100L (1 sachet per 23L)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eWhen to Choose S-04\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eChoose S-04 over US-05 when you want a fuller body, faster clarification, and a distinctly British malt character. US-05 ferments drier and is more neutral — right for American styles. S-04 leaves residual sweetness and clears fast, which is exactly what bitter, porter, and stout need.\u003c\/p\u003e \u003cp\u003eChoose S-04 over M15 when you want a slightly cleaner, more restrained ester profile with the same malt backbone. M15 is more expressive and fruity; S-04 is more controlled.\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePractical Notes\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003ePitch directly onto wort at fermentation temperature, or rehydrate in 10x its weight in 27°C water for 15 minutes. Direct pitching works well at standard gravity (under 1.060).\u003c\/p\u003e \u003cp\u003eS-04's very high flocculation can cause it to drop out before full attenuation if you cold-crash too early. Wait for a stable gravity reading over two consecutive days before crashing.\u003c\/p\u003e \u003cp\u003eFerment at 15–18°C for a cleaner, more restrained result. Higher temperatures push ester character.\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":"Fermentis","offers":[{"title":"Default Title","offer_id":41994568990797,"sku":"25014","price":9.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8306\/0045\/files\/saf-ale-s04-yeast-11g.jpg?v=1785301961","url":"https:\/\/www.australianhomebrewing.com.au\/products\/saf-ale-s04-yeast-11g","provider":"Australian Home Brewing","version":"1.0","type":"link"}