Sorry to revive and old thread, but I couldn't help, but to chime in. I'm with you on this, as I found this in my research, too. Except my research lead me to others who have used it. I was led to believe it was straight freezer, into bottle. Here's the article. I'm going to try it once my grow is ready. Using the KISS method seems to work the best for me.
Regardless of whether you choose a hot or cold method,why not evaporate all the alcohol and decarb the oil visually? Then just add a bit of alcohol back. It might eliminate any discrepancies that your decarb could be causing.
Yes. When it stops bubbling it’s done. I don’t personally like to let it go all the way because it has quite a sedative effect on me. I’m told it’s because CBN has become more dominant. Regardless, I tend to take it off the heat after it’s been at 235-240f for about 5 minutes. There will still be some tiny bubbles and movement at that point but the alcohol has been removed and I consider it to be decarbed.
A double boiler method on a digital induction cooktop makes the process easy to control
The freezer method freezes the trichomes and makes them brittle
When you shake your ground cannabis in a jar you are breaking up the trichomes and releasing the oils inside, heat pretty much does the same thing
I use the freezer method for ease and safety, great results using 190 proof everclear
I decarbed at 240 for 40 minutes, take into account the age of your cannabis if you can, dried out brick weed may not need as long to decarb, but the above temp and time never fail me
I freeze the alcohol and cannabis for at least 24 hours after decarb
I do the shake for 5 minutes, freeze 2 hours, then another 5 minute shake
I use a set up of a stainless steel coffee filter lined with a paper filter placed in a ceramic coffee dripper and cover the top with a 190 micron filter bag
This particular batch of tincture I forgot for 8 hours in the freezer and it was a cloudy extraction with a lot of undesirables
I go way beyond the need and use a buchner filter to clean it up and get rid of the color and taste
You can use a coffee warmer and a fan near a window for reduction or scale up to a table top electric stovetop and double boiler set up
Sometimes the info overload can be frustrating, I learned my method, for a seriously ill in-law on the fly, and folks were very supportive
Good luck!