I’ve been having this issue with all my shatter it won’t Stabilize it sugars up it’s been about 4 runs now!
First off I’m using a HFS 1.9 oven.
I have it set too 97F.
I pour my collection pot too parchment.
Then I stick in the oven and begin to pull vacuum for a hour then I held it for 12 hours, pulled it then flipped and continue to pull vacuum for a hour or so then let hold about 3 hours in complete slab turned to Sugar.
Then I did more runs and it continued so the 4th try I left vacuum on for 12 hours and the next morning half of it turned to Sugar.
Every time I opened I checked the temp on the oven with temp gun it was 98.4 to 98.7 had it set at 97.