"Newbie here . I have been making Tincture for three years now and have using the hot extraction method for a year now. I have upgraded to a 22 quart Oster cooker and I use 3 gallons of Canola surrounding 3 quart jars filled with VG ,whole buds , trim , and past squeezed/pressed pucks. My question is .... I get my oil to 180 F ( holding at that temp ) and my jars do not get much above 160 F. This doesn't make sense to me !"