{"product_id":"wlp045-scotch-whisky-yeast","title":"Scotch Whisky Yeast | White Labs WLP045 Yeast | Vault Strain","description":"\u003ch2\u003eWhite Labs WLP045 Scotch Whisky Yeast\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhite Labs WLP045 Scotch Whisky Yeast\u003c\/strong\u003e is a Vault strain for Scotch and American-style whiskey fermentation. White Labs reports that the culture has been used in Scotch whisky production since the early 1950s. It produces a complex mix of esters and fusel alcohols along with a spicy, clover-like character.\u003c\/p\u003e\n\u003cp\u003eChoose WLP045 when the fermentation should contribute character rather than disappear into the background. Its 75% - 80% attenuation, medium flocculation, and high alcohol tolerance make it a practical liquid culture for grain-based spirit washes.\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 WLP045\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e White Labs Vault strain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended use:\u003c\/strong\u003e Scotch whisky and American-style whiskey\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttenuation:\u003c\/strong\u003e 75% - 80%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlocculation:\u003c\/strong\u003e Medium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlcohol tolerance:\u003c\/strong\u003e High, 10% - 15% ABV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFermentation temperature:\u003c\/strong\u003e 72°F - 77°F \/ 22°C - 25°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSTA1:\u003c\/strong\u003e Positive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFlavor and fermentation character\u003c\/h3\u003e\n\u003cp\u003eWhite Labs describes WLP045 as producing complex esters and fusel alcohols with a spicy clover note. In a spirit fermentation, those compounds help shape the character carried forward into the finished distillate. Fermentation temperature, grain bill, gravity, pitch rate, yeast nutrition, and distillation choices will all affect the final result.\u003c\/p\u003e\n\u003ch3\u003eUsing WLP045\u003c\/h3\u003e\n\u003cp\u003eKeep the pouch refrigerated until use and follow the date and pitching guidance on the package. For a high-gravity wash, pitch enough healthy yeast for the batch size and starting gravity, provide appropriate oxygen at pitching, and use complete yeast nutrition. Hold the fermentation within 72°F - 77°F for the profile published by White Labs.\u003c\/p\u003e\n\u003cp\u003eAlcohol tolerance is not a promise of final strength. Starting gravity, fermentable sugar composition, pH, nutrient availability, temperature, and yeast health all influence where fermentation finishes.\u003c\/p\u003e\n\u003ch3\u003eSTA1-positive strain handling\u003c\/h3\u003e\n\u003cp\u003eWhite Labs lists WLP045 as STA1-positive. STA1-positive yeast can ferment some dextrins that many standard brewing strains leave behind. Clean and sanitize equipment carefully, and avoid carrying this culture into beer fermentations where additional attenuation would be unwanted. For any beverage that will be packaged without distillation, confirm that gravity is stable before packaging.\u003c\/p\u003e\n\u003ch3\u003eVault availability, storage, and shipping\u003c\/h3\u003e\n\u003cp\u003eWLP045 is part of the White Labs Vault collection, so availability may be intermittent. Store the culture cold until fermentation day. During warm-weather shipping, add \u003ca href=\"\/products\/ice-pack-8oz\"\u003eyeast shipping protection\u003c\/a\u003e to help limit heat exposure in transit. An ice pack may arrive melted; its purpose is to buffer the shipment, not keep it refrigerator-cold for the entire trip.\u003c\/p\u003e\n\u003cp\u003eCompare more cultures in our \u003ca href=\"\/collections\/distilling-yeast\"\u003edistilling yeast collection\u003c\/a\u003e, or browse the complete \u003ca href=\"\/collections\/white-labs-yeast\"\u003eWhite Labs yeast selection\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is WLP045 best used for?\u003c\/strong\u003e\u003cbr\u003eWhite Labs recommends WLP045 for Scotch whisky and American-style whiskey fermentations. It is a characterful distilling strain rather than a neutral brewer's yeast.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperature should WLP045 ferment at?\u003c\/strong\u003e\u003cbr\u003eWhite Labs lists 72°F - 77°F \/ 22°C - 25°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs WLP045 available year-round?\u003c\/strong\u003e\u003cbr\u003eIt is a White Labs Vault strain, so availability can be limited or intermittent. The stock status on this page reflects current SoCal Brewing Supply availability.\u003c\/p\u003e","brand":"White Labs","offers":[{"title":"Default Title","offer_id":51952028287254,"sku":"yeast-white-liquid-wlp045","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/4807\/5542\/files\/white-labs-wlp045-scotch-whisky-yeast.png?v=1790108451","url":"https:\/\/socalbrewingsupply.com\/products\/wlp045-scotch-whisky-yeast","provider":"SoCal Brewing Supply","version":"1.0","type":"link"}