PsyCro, I'm mainly writing this to thank you for your help and to give some feedback. I've also had some thoughts related to collecting the oil after an extraction that you may be interested in.
I did an extraction a few weeks ago using about 210g of Blue Blood plant material and 500ml of macadamia oil, recovering about 350-400ml of oil afterwards. The person I'm trying to help took a small amount of it and didn't feel anything so the next dose they took a bit more and didn't feel anything again. I wanted to have some confidence that the reason they weren't feeling anything was because Blue Blood should be reasonably high in CBD rather than because I hadn't decarboxylated it properly so I did a little test for CBD which was positive. I have reason to believe the test works as I previously tested some Blue Blood plant material which was negative, however, when I decarboxylated it it was positive. I also tested some of the CCO I had been using previously and it was negative (which doesn't mean there's no CBD in it, just that there's not enough to get a reaction). That night the person took their third dose which was about half a spoon. These spoons hold about 4ml I think so I think the dose was about 2-2.5ml and they felt a little hungry and perhaps a little dizzy just for a short while.
That night they didn't sleep well so in case it was the oil I decided to make an extraction using the Aurora Indica I had available. This time I used about 135g of plant material with about 250ml of olive oil and recovered about 150ml. I chose to use the olive oil as I was expecting to recover more of the oil in the first extraction, however, after I did this extraction and got back about 100ml less than I put in I realised I should expect to lose about 100ml each time rather than it be proportional to how much oil I use. The 130g plant material was about all I could get. While it's more than the 400g/1l ratio you've used the Aurora Indica probably isn't as potent as Tutankhamon and as I wasn't ready to flower them they probably were less potent still, so the extra plant material is probably still not enough to get it to the same strength as what you used. When this extraction was ready I think the person I'm helping took about the same 2-2.5ml dose of the Aurora Indica/olive oil that night (so the Blue Blood became their daytime oil and the Aurora Indica became their night time oil). They had a better night sleep that night, however, they didn't get out of bed until almost midday as they were still feeling dizzy from the dose they took about 16 hours earlier. I think they reduced the night time dose at first but now I think they're taking about 3-4ml three times a day. Interestingly, the only other time they really had any side effects was when they took the dose on an empty stomach.
After this I did one final extraction with the plant material left which was a bit over 300g of Blue Blood and a little bit of Aurora Indica. In the end I combined about 325g of plant material with 500ml of macadamia oil again and recovered at least as much as I did in the first extraction (about 350-400ml). I used the macadamia oil as the olive oil seemed to be difficult to get out of the bottle when it's refrigerated (I'm not sure what happens but it seems to gel up or partially solidify). After I finished this extraction I tested it and it seemed to have a stronger reaction for CBD than the first extraction, I can't be certain as I will need to do a more accurate test, but my gut feeling is it's more potent. It also doesn't appear to have any problem being refrigerated, so I have no idea why the olive oil extract does. The person I'm helping hasn't taken any of this oil yet so I'll have to wait and see how they respond to it and what dose they take.
I haven't had a chance to test anything for THC yet, but hopefully I will soon, and hopefully I'll be able to do a more accurate comparison to see how the different oils compare.
As far as separating the oil from the water, I had an idea you may be interested in.
Try to picture a 2l soft drink bottle like the ones used to make 2l hempy buckets (an example of which is
here). Instead of cutting off the top of the bottle, cut off the bottom 30mm or so, replace the screw top lid with a valve/tap, and add a length of clear (food safe) pipe on the other side of the valve/tap. You then turn it upside down so the open bottom of the bottle is now the open top and support it with some sort of frame so you can fill it with liquid (as long as the valve/tap is closed).
Next, you need to get a strainer that can hold all the plant material easily and line it with something like cheesecloth. The strainer needs to be able to be supported by the bottle so that anything poured in to the strainer drains in to the bottle.
To separate the oil from the water you simply pour the water/oil/plant material in to the strainer (while it's still warm/hot) and allow it to drain in to the bottle. When it's done you put a large container under the pipe and open the valve/tap to let the water drain out. Just before the oil starts to drain you close the valve/tap to stop the flow, replace the large container with a small container, open the valve/tap slightly to get the last of the water and the very first bit of the oil in to the small container, close the valve/tap to stop the flow, replace the small container with what you want to store the oil in, and open the valve/tap to drain the oil in to that container. Obviously make sure that you close the valve/tap when as much of the oil has drained out as possible.
To get any remaining oil in the pressure cooker you can boil some water in a kettle, pour it in to the pressure cooker, and pour that through the strainer with the valve/tap closed. If there's too much water then you can put the large container under the pipe and open the tap to let out most of the water.
To get any remaining oil in the strainer you can use the kettle and pour hot water in to the strainer similar to getting any remaining oil out of the pressure cooker.
After that you can drain the majority of the water in to the large container, the last bit of water/first bit of oil in to a small container, and any remaining oil in to the container you want to store it in.
If there's still oil in the bottle then some more hot water should hopefully help get it out.
Finally, recover any oil in the small container, possibly by using a syringe or something similar to remove the water at the bottom and then collect the remaining oil.
This is just a way to describe the concept, I'm not suggesting using a 2l bottle as it probably won't be the right size for any suitable strainer and may not be big enough for the liquid, so just imagine something that looks like what I've described as opposed to an actual bottle. I haven't had a chance to try this yet, I have to see if I can find things that I can use to do it this way.