{"id":545,"date":"2023-01-10T23:51:14","date_gmt":"2023-01-10T23:51:14","guid":{"rendered":"https:\/\/graywolfslair.com\/?p=545"},"modified":"2023-04-05T21:03:19","modified_gmt":"2023-04-05T21:03:19","slug":"15-13-ethanol-subzero","status":"publish","type":"post","link":"https:\/\/graywolfslair.com\/index.php\/15-diy-equipment\/15-13-ethanol-subzero\/","title":{"rendered":"15.13 Ethanol Subzero"},"content":{"rendered":"\n<p>For ya&#8217;ll brothers and sisters looking to process larger quantities at a time, we recommend that you consider the Subzero Ethanol process, by which either fresh cut or dry material is packed in bags, which are subsequently placed in a stainless vessel at ambient temperature, through which ethanol at&nbsp; &gt;-50C or lower, is pumped in a circle through it, as it is being agitated, dissolving and removing the essential oils.<\/p>\n\n\n\n<p>Temperatures that low are typically achieved by adding dry ice to the bath of ethanol.<\/p>\n\n\n\n<p>A pump is required that can operate at those temperatures, and due to low seal elasticity at those temperatures, typically a mag drive pump without seals is required.<\/p>\n\n\n\n<p>At those temperatures, full extraction of 25 to 30 pounds of material takes about 10 to 15 minutes, before being passed through a 0.5 micron PTFE coated polyester felt sock filter, available from places like Duda Diesel.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"450\" src=\"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Pumped-system-jpg.webp?resize=525%2C450&#038;ssl=1\" alt=\"\" class=\"wp-image-1748\" srcset=\"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Pumped-system-jpg.webp?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Pumped-system-jpg.webp?resize=300%2C257&amp;ssl=1 300w, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Pumped-system-jpg.webp?resize=600%2C514&amp;ssl=1 600w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/figure>\n\n\n\n<p><strong>Pumped system<\/strong><\/p>\n\n\n\n<p>Here is a conceptual of a system that uses either nitrogen or air pressure to transfer the liquid from the storage tank through the shower head into the second tank of plant material, and then a gain to blow it from the process tank back to the storage tank.&nbsp; Pneumatic pressure can also be used to transport it to the next process. &nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"409\" src=\"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Nitrogen-powered-jpg.webp?resize=525%2C409&#038;ssl=1\" alt=\"\" class=\"wp-image-1749\" srcset=\"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Nitrogen-powered-jpg.webp?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Nitrogen-powered-jpg.webp?resize=300%2C233&amp;ssl=1 300w, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Nitrogen-powered-jpg.webp?resize=600%2C467&amp;ssl=1 600w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/figure>\n\n\n\n<p><strong>Nitrogen powered system<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For ya&#8217;ll brothers and sisters looking to process larger quantities at a time, we recommend that you consider the Subzero Ethanol process, by which either [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[50],"tags":[],"class_list":["post-545","post","type-post","status-publish","format-standard","hentry","category-15-diy-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>15.13 Ethanol Subzero - GrayWolf&#039;s Lair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/graywolfslair.com\/index.php\/15-diy-equipment\/15-13-ethanol-subzero\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"15.13 Ethanol Subzero - GrayWolf&#039;s Lair\" \/>\n<meta property=\"og:description\" content=\"For ya&#8217;ll brothers and sisters looking to process larger quantities at a time, we recommend that you consider the Subzero Ethanol process, by which either [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/graywolfslair.com\/index.php\/15-diy-equipment\/15-13-ethanol-subzero\/\" \/>\n<meta property=\"og:site_name\" content=\"GrayWolf&#039;s Lair\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/james.ellis.9081\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-10T23:51:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-05T21:03:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Pumped-system-jpg.webp\" \/>\n<meta name=\"author\" content=\"GrayWolf\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"GrayWolf\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/index.php\\\/15-diy-equipment\\\/15-13-ethanol-subzero\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/index.php\\\/15-diy-equipment\\\/15-13-ethanol-subzero\\\/\"},\"author\":{\"name\":\"GrayWolf\",\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/#\\\/schema\\\/person\\\/40d6da885f58d0e767e114277e1c7d1c\"},\"headline\":\"15.13 Ethanol Subzero\",\"datePublished\":\"2023-01-10T23:51:14+00:00\",\"dateModified\":\"2023-04-05T21:03:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/index.php\\\/15-diy-equipment\\\/15-13-ethanol-subzero\\\/\"},\"wordCount\":219,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/graywolfslair.com\\\/index.php\\\/15-diy-equipment\\\/15-13-ethanol-subzero\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/graywolfslair.com\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/Pumped-system-jpg.webp\",\"articleSection\":[\"15. 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Ethanol and Isopropanol moledules FDA classifies both solvents as Class III, but also classifies Ethanol as GRAS,\u2026","rel":"","context":"In &quot;9.4.7 Ethanol extraction&quot;","block_context":{"text":"9.4.7 Ethanol extraction","link":"https:\/\/graywolfslair.com\/index.php\/category\/9-diy-cannamed-production\/9-4-extraction\/9-4-7-ethanol-extraction\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Wax.gif?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Wax.gif?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Wax.gif?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":646,"url":"https:\/\/graywolfslair.com\/index.php\/16-commercial-equipment\/16-3-plant-tours\/16-3-1-subzero-scientific\/","url_meta":{"origin":545,"position":2},"title":"16.3.1 Subzero Scientific","author":"GrayWolf","date":"January 11, 2023","format":false,"excerpt":"One of Graywolf\u2019s Lair new columns is about my visits to local cannabis equipment manufacturers, and I started with Subzero Scientific, handily located in Gresham, OR.\u00a0 I started with Subzero Scientific because they are not only a major player in the cannabis equipment arena, but Gresham is close to Portland,\u2026","rel":"","context":"In &quot;16.3 Plant tours&quot;","block_context":{"text":"16.3 Plant tours","link":"https:\/\/graywolfslair.com\/index.php\/category\/16-commercial-equipment\/16-3-plant-tours\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/CNC-and-saw2-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/CNC-and-saw2-jpg.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/CNC-and-saw2-jpg.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/CNC-and-saw2-jpg.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/CNC-and-saw2-jpg.webp?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":632,"url":"https:\/\/graywolfslair.com\/index.php\/16-commercial-equipment\/16-2-equipment-tests\/16-2-1-extract-craft-source-turbo\/","url_meta":{"origin":545,"position":3},"title":"16.2.1 Extract Craft Source Turbo","author":"GrayWolf","date":"January 11, 2023","format":false,"excerpt":"It\u2019s good to be us when people send us peachy keen equipment to test, and we were recently smiled on by Extract Craft, who submitted their new Source Turbo to our lab for testing. Check out their site for more information about their featured unit, as well as other interesting\u2026","rel":"","context":"In &quot;16.2 Equipment tests&quot;","block_context":{"text":"16.2 Equipment tests","link":"https:\/\/graywolfslair.com\/index.php\/category\/16-commercial-equipment\/16-2-equipment-tests\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Yield4-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Yield4-jpg.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Yield4-jpg.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":683,"url":"https:\/\/graywolfslair.com\/index.php\/18-0-the-vacuum-cooking-and-aluminum-bead-sous-vide-test-sled\/18-3-produce-food-concentrates-extracting-and-boiling-at-low-temperatures-under-vacuum\/","url_meta":{"origin":545,"position":4},"title":"18.3 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