{"product_id":"zinc-sulphate-heptahydrate-granular-2-5kg-murphy-son","title":"Zinc Sulphate Heptahydrate Granular 2,5kg - Murphy \u0026 Son","description":"\u003ch2\u003eZinc Sulphate Heptahydrate 2.5 kg from Murphy \u0026amp; Son – zinc as a yeast nutrient\u003c\/h2\u003e\u003cp\u003eZinc Sulphate (zinc sulphate heptahydrate) from Murphy \u0026amp; Son is a simple source of zinc, a nutrient yeast needs to grow and ferment well. Zinc is often lacking in wort. Worts typically contain only 0.04–0.10 ppm zinc, and research has shown that supplementing up to 0.5 ppm stimulates yeast growth and improves fermentation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This product is only available in Norway.\u003c\/p\u003e\u003cp\u003eZinc acts as a cofactor for several yeast enzymes, including alcohol dehydrogenase, which yeast uses to produce alcohol and CO\u003csub\u003e2\u003c\/sub\u003e. Zinc sulphate can also reduce sulphury notes in beer, as the zinc reacts with hydrogen sulphide from fermentation and precipitates as insoluble zinc sulphide.\u003c\/p\u003e\u003ch3\u003eBenefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eImproved yeast growth\u003c\/li\u003e\n\u003cli\u003eFaster fermentation\u003c\/li\u003e\n\u003cli\u003eFewer sulphury notes\u003c\/li\u003e\n\u003cli\u003eConcentrated product that is economical in use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSigns of zinc deficiency\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLong lag phase before fermentation starts\u003c\/li\u003e\n\u003cli\u003eHigh pH\u003c\/li\u003e\n\u003cli\u003eStuck or sluggish fermentation\u003c\/li\u003e\n\u003cli\u003ePoor fining\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to use Zinc Sulphate\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdd to the kettle at the end of the boil, or mix with a little wort and add to the fermenter.\u003c\/li\u003e\n\u003cli\u003eTypical dosage: 0.045–0.11 g per hectolitre, giving 0.1–0.25 mg\/L zinc (Zn\u003csup\u003e2+\u003c\/sup\u003e).\u003c\/li\u003e\n\u003cli\u003eDosage may vary with yeast strain and grist composition.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eContents: zinc sulphate heptahydrate\u003c\/li\u003e\n\u003cli\u003ePack size: 2.5 kg\u003c\/li\u003e\n\u003cli\u003eStorage: in the original container, tightly closed, cool and away from direct sunlight\u003c\/li\u003e\n\u003cli\u003eShelf life: 3 years from date of manufacture when stored correctly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOn contact with skin or eyes: rinse immediately with plenty of water.\u003c\/li\u003e\n\u003cli\u003eAvoid creating and inhaling dust.\u003c\/li\u003e\n\u003cli\u003eRead the safety data sheet before use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions about Zinc Sulphate\u003c\/h2\u003e\u003ch3\u003eWhy does yeast need zinc?\u003c\/h3\u003e\u003cp\u003eZinc is a cofactor for several yeast enzymes, including the one that produces alcohol and CO\u003csub\u003e2\u003c\/sub\u003e. Without enough zinc, fermentation can start late, run slowly or stall.\u003c\/p\u003e\u003ch3\u003eHow much should I use?\u003c\/h3\u003e\u003cp\u003eAccording to the data sheet, the typical dosage is 0.045–0.11 g per hectolitre. That is about 9–22 mg per 20 litres, so you need very little.\u003c\/p\u003e\u003ch3\u003eWhen do I add it?\u003c\/h3\u003e\u003cp\u003eAt the end of the boil in the kettle, or mixed with a little wort and added to the fermenter.\u003c\/p\u003e\u003ch3\u003eCan zinc remove sulphury notes?\u003c\/h3\u003e\u003cp\u003eZinc sulphate can reduce sulphury notes, as the zinc binds hydrogen sulphide from fermentation as insoluble zinc sulphide.\u003c\/p\u003e\u003ch3\u003eRelated\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/collections\/proff-smak-og-tilsetning-enzymer-og-annet\"\u003eEnzymes and other\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/collections\/murphy-son\"\u003eMurphy \u0026amp; Son\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/8422\/6914\/files\/zinc-sulphate-tds-murphy-son.pdf?v=1792754858\" target=\"_blank\"\u003eTechnical data sheet\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/8422\/6914\/files\/zinc-sulphate-sds-murphy-son.pdf?v=1792754858\" target=\"_blank\"\u003eSafety data sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Murphy \u0026 Son","offers":[{"title":"Default Title","offer_id":50746855161954,"sku":"ZINSUL-2.5K","price":1398.0,"currency_code":"SEK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/8422\/6914\/files\/zinc-sulphate-heptahydrate-granular-2-5kg-murphy-son.jpg?v=1792754895","url":"https:\/\/brewshop.se\/en\/products\/zinc-sulphate-heptahydrate-granular-2-5kg-murphy-son","provider":"Brewshop","version":"1.0","type":"link"}