spread qwiso thin
- Thread starter joe0508
- Start date
skepler
Well-Known Member
I use the pyrex baking dishes, rectangular, that are about 10" X 14". I have found the amount of QWISO extract that reduces to 3-4 grams ends up in a thin enough film to purge the ISO. High producing buds yield about 4 grams from frozen material. So I use the extract from one oz per baking dish.
Yea that is what I was referring to.Thanks for tha reply.Would it be necessary and would it make a better product if I use one of those micro syringes after I use the coffee filters and if so what kind should I get?
Fadedawg
Well-Known Member
The easiest way I've found to achieve a thin film with QWISO or QWET, is start with a large enough dish so that when the alcohol is gone, the oil is left behind in a thin film.
We use a rotovape in the lab to get rid of most of the liquid, but finish in a Pyrex casserole dish about the size Skepler noted. I've also just covered the dish, with it sitting on a 135F heat mat, and just blown air across the top. The both work, but the air around here has high humidity, and alcohol is hygroscopic, so picks up water and turns the mixture white and cloudy.
When finishing off in a vacuum oven at 125F and -29.5" Hg, I put a sheet of glass over the top of the casserole dish to disperse bumping bubbles spattering the inside of the oven.
We use a rotovape in the lab to get rid of most of the liquid, but finish in a Pyrex casserole dish about the size Skepler noted. I've also just covered the dish, with it sitting on a 135F heat mat, and just blown air across the top. The both work, but the air around here has high humidity, and alcohol is hygroscopic, so picks up water and turns the mixture white and cloudy.
When finishing off in a vacuum oven at 125F and -29.5" Hg, I put a sheet of glass over the top of the casserole dish to disperse bumping bubbles spattering the inside of the oven.
Fadedawg
Well-Known Member
The silicone pads we use are good to
The silicone pads that we use are limited to about 400F.
skepler
Well-Known Member
You can also use a seedling warming mat, they are about 100°F, but don't get the pyrex dish nearly that warm. I assume the evaporation with a fan lowers the solution temperature enough it never really warms much until the ISO is nearly gone.
I have read these seedling warming mats raises the temp of the room by 10 or 20 degrees.I am kinda confused about the way this works.If the room is say 50 degrees does that mean the mat only heats up to 70 degrees max or does the mat heat up to 100 degrees no matter what situation?Also is it a must to use a temp controller with these?
skepler
Well-Known Member
The seed mats are a low wattage, uncontrolled heat source. And I have found they do add 10-20° to ambient temperature. Since the alcohol is evaporating, the liquid really doesn't warm up much if at all, until the alcohol is gone. The mat just speeds up the process a bit.
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