{"id":303,"date":"2023-01-10T01:18:05","date_gmt":"2023-01-10T01:18:05","guid":{"rendered":"https:\/\/graywolfslair.com\/?p=303"},"modified":"2023-04-05T10:59:56","modified_gmt":"2023-04-05T10:59:56","slug":"9-4-12-thermos-extraction","status":"publish","type":"post","link":"https:\/\/graywolfslair.com\/index.php\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-12-thermos-extraction\/","title":{"rendered":"9.4.12 Thermos extraction"},"content":{"rendered":"\n

Jump117 shared an extraction technique with us on IC Mag forum, that used a stainless thermos to keep the LPG liquid longer, so as to increase residence time.  To conduct our experiment, I first made a trip to Goodwill, where I picked up a couple stainless thermoses for about $8.00 each.<\/p>\n\n\n\n

My first step was to wash and sterilize the thermos, toss the screw cap, and to drill three holes in the cup covering the screw cap.  I drilled one 1\/8\u201d hole in the center, and two 3\/16\u201d holes either side of center to allow fumes to vent.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Drilled cap<\/strong><\/p>\n\n\n\n

My next step was to accumulate the rest of my material and equipment, which besides the thermos included a can of lighter butane, a bain marie set, a strainer, and material to extract.  Not shown is a cooler full of ice to store the butane in outdoors.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

Equipment<\/strong><\/p>\n\n\n\n

Next step was to load the material to be extracted into the thermos, which we packed lightly and filled about \u00be\u2019s full.<\/p>\n\n\n\n

I then placed the thermos in the freezer at -18C\/0F and the butane into a cooler full of ice to chill overnight. <\/p>\n\n\n\n

I didn\u2019t put the butane in the freezer, because the valve seals lose resiliency as the temperature drops, and they are more prone to leaks, leading to possible explosions.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Chilled thermos and butane<\/strong><\/p>\n\n\n\n

After selecting an ignition source free outdoor space with adequate airflow, the next step is to inject the chilled butane into the thermos through the center hole in the cap.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Injecting the butane<\/strong><\/p>\n\n\n\n

Once the thermos is full of butane, it is covered to insulate it and placed in a well ventilated shady spot to soak. <\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

Soaking<\/strong><\/p>\n\n\n\n

After a 10 minute soak, we rapidly drained the thermos by removing the cap and dumping the thermos inverted into the strainer, which we had sitting over the bain marie.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

Dumping<\/strong><\/p>\n\n\n\n

We then allowed the butane to boil away, aided by tap hot water in the lower bain marie container.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

Boiling off.<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Yield from low grade trim before winterizing<\/strong><\/p>\n\n\n\n

Our last step was to add 190 proof ethanol to the bain marie and dissolve the extract at a ratio of about 10:1.  That solution is then poured into a canning jar, sealed and placed in a -18C\/0F freezer for about 48 hours to precipitate the waxes, at which time it is filtered.  See 10.2 Winterizing.<\/p>\n","protected":false},"excerpt":{"rendered":"

Jump117 shared an extraction technique with us on IC Mag forum, that used a stainless thermos to keep the LPG liquid longer, so as to […]<\/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":[69],"tags":[],"class_list":["post-303","post","type-post","status-publish","format-standard","hentry","category-9-4-9-alkane-extraction"],"yoast_head":"\n9.4.12 Thermos extraction - GrayWolf'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\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-12-thermos-extraction\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"9.4.12 Thermos extraction - 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Butane and Propane are both listed\u2026","rel":"","context":"In "9.4.9 Alkane extraction"","block_context":{"text":"9.4.9 Alkane extraction","link":"https:\/\/graywolfslair.com\/index.php\/category\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/18in-barrel-thief-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":124,"url":"https:\/\/graywolfslair.com\/index.php\/2-legal-political-current-affairs\/2-3-the-patent-battle\/","url_meta":{"origin":303,"position":3},"title":"2.3 The Patent Battle","author":"GrayWolf","date":"January 9, 2023","format":false,"excerpt":"As with the history of BHO extraction, success has many fathers, some of which are trying to exclude competition and\/or extort payment by claiming patent rights on closed loop LPG extraction systems. As most of ya\u2019ll know, patents are not respected internationally, so some secrets are best kept in house.\u00a0\u2026","rel":"","context":"In "2. Legal, Political, & Current Affairs"","block_context":{"text":"2. 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