{"id":4518,"date":"2025-07-03T14:56:49","date_gmt":"2025-07-03T13:56:49","guid":{"rendered":"http:\/\/brewersselect.com\/ie\/shop\/ab-vickers-isy-s-reduce\/"},"modified":"2025-10-06T13:14:16","modified_gmt":"2025-10-06T12:14:16","slug":"ab-vickers-isy-s-reduce","status":"publish","type":"product","link":"https:\/\/brewersselect.com\/ie\/shop\/ab-vickers-isy-s-reduce\/","title":{"rendered":"AB Vickers ISY S-Reduce\u2122"},"content":{"rendered":"

AB Vickers ISY S-Reduce\u2122 is an inactivated specific yeast autolysate rich in copper, it has the ability to remove sulfur off-flavours from beer e.g. Hydrogen sulfide (H2S), Dimethyl Sulfide (DMS) and Mercaptans.<\/strong><\/p>\n

When AB Vickers ISY S-Reduce\u2122 is applied to beer at the end of fermentation, the sulfur compounds adhere to the copper wall of the inactive yeast and precipitate out of the beer during filtration, leaving a clean, fresh tasting beer.<\/p>\n

AB Vickers ISY S-Reduce\u2122 is gluten-free.<\/p>\n

Treatment Rates:<\/strong>
\n
\n10-30g\/hL<\/p>\n

Application:<\/strong>
\n
\nAdd to the fermenter at the end of fermentation.
\nAdd in about 10x its weight of sterile, deaerated water.<\/p>\n

Brewing Practice<\/strong>
\nAB Vickers ISY S-Reduce\u2122 does not contain a significant amount of nitrogen and should not be considered a nutrient addition.
\nLimit contact with the beer to 3-5 days. To achieve this, add product towards the end of fermentation or during maturation and transfer the beer off of the yeast within a few days. Sulfur reduction is efficient and normally achieved during this period. ISY S-Reduce\u2122 is partially soluble and may contribute slight haze, which can be removed by clarification or filtration.<\/p>\n","protected":false},"excerpt":{"rendered":"

AB Vickers ISY S-Reduce\u2122 is an inactivated specific yeast autolysate rich in copper, it has the ability to remove sulfur off-flavours from beer e.g. Hydrogen sulfide (H2S), Dimethyl Sulfide (DMS) and Mercaptans. When AB Vickers ISY S-Reduce\u2122 is applied to beer at the end of fermentation, the sulfur compounds adhere to the copper wall of […]<\/p>\n","protected":false},"featured_media":4520,"template":"","meta":{"_acf_changed":false,"iawp_total_views":9},"product_brand":[],"product_cat":[121],"product_tag":[209],"class_list":{"0":"post-4518","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-brewing-aids-finings","7":"product_tag-new","8":"pa_pack-size-1kg","9":"pa_supplier-ab-vickers","10":"pa_yeast-type-dried","12":"first","13":"instock","14":"purchasable","15":"product-type-variable","16":"has-default-attributes"},"acf":[],"yoast_head":"\nLoughran Brewers Select | AB Vickers ISY S-Reduce\u2122<\/title>\n<meta name=\"description\" content=\"Shop our AB Vickers ISY S-Reduce\u2122 - Loughran Brewers Select stock only the finest quality brewing ingredients and equipment available in the UK.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/brewersselect.com\/ie\/shop\/ab-vickers-isy-s-reduce\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AB Vickers ISY S-Reduce\u2122 - Loughran Brewers Select\" \/>\n<meta property=\"og:description\" content=\"AB Vickers ISY S-Reduce\u2122 is an inactivated specific yeast autolysate rich in copper, it has the ability to remove sulfur off-flavours from beer e.g. Hydrogen sulfide (H2S), Dimethyl Sulfide (DMS) and Mercaptans. When AB Vickers ISY S-Reduce\u2122 is applied to beer at the end of fermentation, the sulfur compounds adhere to the copper wall of […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/brewersselect.com\/ie\/shop\/ab-vickers-isy-s-reduce\/\" \/>\n<meta property=\"og:site_name\" content=\"Loughran Brewers Select\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-06T12:14:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/brewersselect.com\/ie\/wp-content\/uploads\/sites\/2\/2025\/09\/AB-Vickers-ISY-S-Reduce-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"700\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/\",\"url\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/\",\"name\":\"AB Vickers ISY S-Reduce\u2122 - Loughran Brewers Select\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2025\\\/09\\\/AB-Vickers-ISY-S-Reduce-1.png\",\"datePublished\":\"2025-07-03T13:56:49+00:00\",\"dateModified\":\"2025-10-06T12:14:16+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/#primaryimage\",\"url\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2025\\\/09\\\/AB-Vickers-ISY-S-Reduce-1.png\",\"contentUrl\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2025\\\/09\\\/AB-Vickers-ISY-S-Reduce-1.png\",\"width\":700,\"height\":700},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/ab-vickers-isy-s-reduce\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"AB Vickers ISY S-Reduce\u2122\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/#website\",\"url\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/\",\"name\":\"Loughran Brewers Select\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/brewersselect.com\\\/ie\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Loughran Brewers Select | AB Vickers ISY S-Reduce\u2122","description":"Shop our AB Vickers ISY S-Reduce\u2122 - Loughran Brewers Select stock only the finest quality brewing ingredients and equipment available in the UK.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/brewersselect.com\/ie\/shop\/ab-vickers-isy-s-reduce\/","og_locale":"en_GB","og_type":"article","og_title":"AB Vickers ISY S-Reduce\u2122 - Loughran Brewers Select","og_description":"AB Vickers ISY S-Reduce\u2122 is an inactivated specific yeast autolysate rich in copper, it has the ability to remove sulfur off-flavours from beer e.g. Hydrogen sulfide (H2S), Dimethyl Sulfide (DMS) and Mercaptans. 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