Presumably that’s 90F, certainly 90C would explain “loss of terps”
How “occasional”?
What vac depth?
For how long?
(Diagnosing requires data…)
Noticed? Or have analytics that demonstrate?
Whipping makes for smaller crystals, which means more surface area to spread any liquid onto …such material will appear “drier” than material that was purged without whipping.
Do you have residual solvent analytics?
I’d like to explore why you’re trying to purge in jars…
The surface to volume ratio is working against you there as well.
Dry weight?
Got that COA?
Does it include potency?
Assuming you got ALL of them, can you do the math on your expectations?
hint: mass balance