I’ve been doing warm ethanol extraction in 5gal buckets.
My procedure goes like this: wash 16lb total into 5gal ethanol, 3min soak time, washing 1lb at time in 5gal 220 bubble bag and then spin drying in panda and adding recovered alcohol back into bucket.
I’ve been pulling a lot of green and filtering/winterizing has been pretty tedious.
I’m about to switch to extracting at -33c with stainless steel stock pots inside a cheest freezer with the panda in the chest freezer as well.
The plan is to dunk the 1lb bags into the stock pot of -33c ethanol stir and let soak with lid closed to cheest freezer then open just to put the bag into the panda, let spin dry and drain into pryex dish with the panda/Pyrex dish inside the closed chest freezer.
I’m hoping by keeping everything inside the cheest freezer and filtering 1gal at a time straight out of the freezer through my 50l Buchner any particulate will be removed before the ethanol warms back up.
Only thing I’m not quite sure about is how these colder temps will affect my soak times, I’ve read everywhere in between 2min to 1hr soak time for cold ethanol extraction.
Can anyone please give me some advice for proper soak time at -33c?