{"product_id":"fermentis-safale-k-97","title":"Fermentis SafAle™ K-97 · Dry German Ale Yeast · 11.5 g","description":"\u003cp\u003e\u003cstrong\u003eFloral, gently fruity and never shouty. K-97 is a German ale yeast built for delicate beers like Kölsch — and it throws up a big, firm head while it works.\u003c\/strong\u003e\u003c\/p\u003e\u003cp class=\"bt-keyfacts\"\u003eAttenuation 80–84 % · 18–26 °C · Slow sedimentation · Medium esters · 50–80 g\/hl · 11.5 g sachet\u003c\/p\u003e\u003ch3\u003eWhat it does in your beer\u003c\/h3\u003e\u003cp\u003eK-97 has a subtle fermentation character: depending on conditions, it leans floral with a balanced fruitiness. Apparent attenuation is 80–84 %, with medium esters and medium higher alcohols.\u003c\/p\u003e\u003cp\u003eFermentis recommends it for German Kölsch, Belgian witbiers and some session beers. It also suits heavily hopped beers and forms a large, firm head during fermentation.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eFermentis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStrain \/ type\u003c\/td\u003e\n\u003ctd\u003eGerman ale yeast (Saccharomyces cerevisiae)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm\u003c\/td\u003e\n\u003ctd\u003eActive dry yeast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e11.5 g sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent attenuation\u003c\/td\u003e\n\u003ctd\u003e80–84 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSedimentation\u003c\/td\u003e\n\u003ctd\u003eSlow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFermentation temperature\u003c\/td\u003e\n\u003ctd\u003e18–26 °C (ideal range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlcohol tolerance\u003c\/td\u003e\n\u003ctd\u003e9–11 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEsters \/ higher alcohols\u003c\/td\u003e\n\u003ctd\u003eMedium \/ medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDosage\u003c\/td\u003e\n\u003ctd\u003e50–80 g\/hl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRehydration\u003c\/td\u003e\n\u003ctd\u003eOptional — direct pitch or rehydrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eHow much for a 20 L batch\u003c\/h3\u003e\u003cp\u003eFermentis recommends 50–80 g\/hl. For 20 L (0.2 hl) that's 10–16 g, i.e. 1–2 sachets of 11.5 g (approx.).\u003c\/p\u003e\u003cp\u003eA single 11.5 g sachet lands inside that range; the top of the range takes a second one.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect pitch: with the wort at or above fermentation temperature, sprinkle the yeast over the surface a little at a time so it doesn't clump.\u003c\/li\u003e\n\u003cli\u003eOr rehydrate in at least 10× its weight of sterile water or boiled, hopped wort at 25–29 °C (115 ml or more per sachet), rest 15–30 minutes, stir gently and pitch.\u003c\/li\u003e\n\u003cli\u003eFerment at 18–26 °C.\u003c\/li\u003e\n\u003cli\u003eLeave headspace in the fermenter: K-97 builds a large, firm head.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePairs well with\u003c\/h3\u003e\u003cp\u003eBrewing a Kölsch? Try it with our floor-malted Czech Pilsner malt, a small share of BESTMALZ BEST Wheat and Saaz for a soft, noble bitterness.\u003c\/p\u003e\u003ch3\u003eStorage \u0026amp; shelf life\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eKeep it cool and dry. Fermentis allows storage below 24 °C for up to 6 months and recommends below 15 °C beyond that — the fridge covers both.\u003c\/li\u003e\n\u003cli\u003eShelf life: 36 months from the production date.\u003c\/li\u003e\n\u003cli\u003eOpened sachet: seal it, store at 4 °C and use within 7 days.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFood information\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eName: Active dry brewing yeast, SafAle™ K-97\u003c\/li\u003e\n\u003cli\u003eIngredients: yeast (Saccharomyces cerevisiae), emulsifier: sorbitan monostearate (E491)\u003c\/li\u003e\n\u003cli\u003eAllergens: none of the listed ingredients is an EU 1169\/2011 allergen. Fermentis produces its yeast using glucose syrup derived from wheat, which is permanently exempt from allergen labelling in the EU; gluten in the finished product is below 20 mg\/kg\u003c\/li\u003e\n\u003cli\u003eNet quantity: 11.5 g\u003c\/li\u003e\n\u003cli\u003eStorage: cool and dry; below 15 °C for storage beyond 6 months\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGood to know\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e11.5 g sachet — one sits inside the Fermentis dose for a 20 L batch.\u003c\/li\u003e\n\u003cli\u003eCheck the best-before on the sachet; shelf life is 36 months from production.\u003c\/li\u003e\n\u003cli\u003eIt ships from our partner warehouse in the Czech Republic, not with our equipment, so it may turn up on a different day.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat beers is K-97 for?\u003c\/strong\u003e\u003cbr\u003eFermentis recommends it for German Kölsch, Belgian witbiers and some session beers, and says it suits heavily hopped beers too.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to rehydrate K-97?\u003c\/strong\u003e\u003cbr\u003eNo. Fermentis allows direct pitching onto the wort; rehydration at 25–29 °C for 15–30 minutes is optional.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many K-97 sachets for 20 L?\u003c\/strong\u003e\u003cbr\u003eOne or two. 50–80 g\/hl is 10–16 g for 20 L, and one 11.5 g sachet falls within that.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs K-97 gluten-free?\u003c\/strong\u003e\u003cbr\u003eFermentis says its yeast is produced using glucose syrup derived from wheat, but gluten in the finished product is below 20 mg\/kg, so it can be considered gluten-free. In the EU, that wheat-based glucose syrup is exempt from allergen labelling.\u003c\/p\u003e","brand":"Fermentis","offers":[{"title":"Default Title","offer_id":60933610766670,"sku":"BOP-310","price":4.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/9810\/6309\/files\/310_1533-safale-k-97-11g.jpg?v=1790201898","url":"https:\/\/brewtaurus.com\/en-cz\/products\/fermentis-safale-k-97","provider":"BrewTaurus.com | Brewing Technology","version":"1.0","type":"link"}