I had to try the first batch of every strain to find out what I needed, starting low and working up to what I needed. You'll need to do the same. Just give it a couple of hours before taking more as it takes time to enter your bloodstream.
I don't use the butter, but capsules with decarbed rosin and coconut oil. These are the calculations I used:
I started with decarbed flower in the capsules. By trying different sizes of capsules, I found that capsules with 150mg or 250mg worked best for me. The problem was dosing was inconsistent. When I got the rosin press earlier this year, I switched to that to get the consistent dosing I wanted. I did the calculations to get a rosin equivalent to those doses, then added enough oil to fill the capsules.
As an example, for 100 size 2 capsules that held 150mg each, I needed 15gm of flower. I assumed that I would recover 70% of the rosin from the flower.
15gm/0.70 = 21gm This is the amount of flower I pressed for rosin
3.78gm rosin was the result. This is what i used for 100 capsules.
0.37ml is the volume of a size 2 capsule according to capsule connection
100 *0.37ml = 37ml required to fill 100 capsules
0.95 is the specific gravity of coconut oil, I made the assumption that rosin was close to that
37ml * 0.95 = 35.9gm weight of coconut oil and rosin needed to fill 100 capsules
35.9gm - 3.78gm = 32.12gm subtracting the weight of rosin gives me the weight of coconut oil needed
I mixed the 32.12 gm of coconut oil with the decarbed rosin and filled a few capsules. It turned out that the capsules were a little stronger than I thought they would be. This showed I was getting more than 70% of the cannabiniods when I pressed the flower into rosin. The difference was not enough to worry about, so i filled the remaining capsules.
