{"product_id":"wlp520-sigmund-kveik-ale-yeast","title":"Sigmund Kveik Ale Yeast | White Labs WLP520 | Vault Strain","description":"\u003ch2\u003eWhite Labs WLP520 Sigmund Kveik Ale Yeast\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhite Labs WLP520 Sigmund Kveik Ale Yeast\u003c\/strong\u003e is a Vault strain sourced from Sigmund Gjernes of Voss, Norway. White Labs describes it as a Voss kveik strain with earthy character and a touch of orange peel aroma, built for brewers who want reliable warm fermentation without tight temperature control.\u003c\/p\u003e\n\u003cp\u003eUse WLP520 when you want the speed and heat tolerance associated with Norwegian farmhouse kveik while keeping the profile approachable for American ales, pale ales, IPAs, porters, stouts, and other clean-to-lightly-expressive warm-fermented beers.\u003c\/p\u003e\n\u003ch3\u003eFermentation profile\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhite Labs part number:\u003c\/strong\u003e WLP520\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStrain name:\u003c\/strong\u003e Sigmund Kveik Ale Yeast\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e White Labs Vault strain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttenuation:\u003c\/strong\u003e 75% - 83%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlocculation:\u003c\/strong\u003e Medium to high\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlcohol tolerance:\u003c\/strong\u003e Medium to high, 8% - 12% ABV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFermentation temperature:\u003c\/strong\u003e 72°F - 98°F \/ 22°C - 37°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTA1:\u003c\/strong\u003e Negative\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFlavor and aroma\u003c\/h3\u003e\n\u003cp\u003eWLP520 is a Voss kveik strain with earthy flavor and subtle orange peel aroma. It is not meant to behave like a neutral Chico-style ale yeast, but it can still stay controlled enough for hop-forward ales and darker beer styles when fermentation is managed well.\u003c\/p\u003e\n\u003cp\u003eWarm fermentation can bring more kveik expression and faster turnaround. Cooler fermentation within the listed range can keep the profile more restrained, though kveik strains are often chosen because they perform well when a normal ale strain would be stressed.\u003c\/p\u003e\n\u003ch3\u003eBest beer styles\u003c\/h3\u003e\n\u003cp\u003eWhite Labs lists WLP520 for American IPA, Blonde Ale, Brown Ale, Double IPA, Hazy\/Juicy IPA, Pale Ale, Porter, Red Ale, and Stout. That makes it useful for brewers who want one warm-tolerant liquid strain that can cover both hoppy ales and maltier pub-style beers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAmerican IPA, Double IPA, Hazy\/Juicy IPA, and Pale Ale\u003c\/li\u003e\n  \u003cli\u003eBlonde Ale, Red Ale, and Brown Ale\u003c\/li\u003e\n  \u003cli\u003ePorter and Stout\u003c\/li\u003e\n  \u003cli\u003eWarm-fermented ales when temperature control is limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use WLP520\u003c\/h3\u003e\n\u003cp\u003eKeep the pouch refrigerated until brew day and follow White Labs handling guidance for pitching liquid yeast. For higher-gravity beers, older packages, or very demanding fermentations, consider building a starter or pitching enough fresh yeast for the wort gravity and batch size.\u003c\/p\u003e\n\u003cp\u003eKveik can ferment very quickly when warm, so plan for active fermentation and enough headspace. If you are fermenting hot, yeast nutrition matters. A yeast nutrient such as \u003ca href=\"\/products\/white-labs-zinc-buddy\"\u003eWhite Labs Zinc Buddy\u003c\/a\u003e can help support healthy fermentation, especially in high-gravity or nutrient-limited wort.\u003c\/p\u003e\n\u003ch3\u003eStorage and shipping\u003c\/h3\u003e\n\u003cp\u003eWhite Labs liquid yeast should stay cold until use. For shipped orders, especially during warm weather, add \u003ca href=\"\/products\/ice-pack-8oz\"\u003eyeast shipping protection\u003c\/a\u003e to help buffer the package in transit. Melted ice packs are normal; the goal is reducing heat exposure during the trip.\u003c\/p\u003e\n\u003cp\u003eFor more liquid strains, browse our \u003ca href=\"\/collections\/white-labs-yeast\"\u003eWhite Labs yeast\u003c\/a\u003e collection or compare other warm-fermentation options in our \u003ca href=\"\/collections\/kveik-yeast\"\u003ekveik yeast\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs WLP520 the same as Voss kveik?\u003c\/strong\u003e\u003cbr\u003eWhite Labs describes WLP520 as a kveik strain from Sigmund Gjernes of Voss, Norway, and notes that it is also known as Voss Kveik.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature should I ferment WLP520 at?\u003c\/strong\u003e\u003cbr\u003eWhite Labs lists 72°F - 98°F \/ 22°C - 37°C. It is a good choice when normal ale temperature control is difficult, but fermentation character will still change with temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does WLP520 taste like?\u003c\/strong\u003e\u003cbr\u003eExpect earthy kveik character with a light orange peel aroma. It works well in hoppy ales, amber-to-brown ales, porters, and stouts where citrusy farmhouse character can sit comfortably with hops or malt.\u003c\/p\u003e","brand":"White Labs","offers":[{"title":"Default Title","offer_id":51818381902102,"sku":"yeast-white-liquid-wlp520","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/4807\/5542\/files\/white-labs-wlp520-sigmund-kveik-ale-yeast.png?v=1788370707","url":"https:\/\/socalbrewingsupply.com\/products\/wlp520-sigmund-kveik-ale-yeast","provider":"SoCal Brewing Supply","version":"1.0","type":"link"}