Auto buddering continues on many extractions long after the process is believed to be complete if not finished correctly. If your using a vacuum chamber and heat source dialing in one solid constant temp throughout the entire process is crucial. Typical griddle or oven varies and has huge temp swings at such low settings. Water bath, sand, pizza stone, oil slick mats. and so many other things will aid in stable temps. Try finding a way to elevate the chamber off the heat source just a inch or two this will also help. Also try a shelf or metal strainer upside down inside the chamber, anyway to stabilize the temps similar to a real oven. Never whip or pop your bubbles, the agitation of the oil is what causes the waxing up or buddering way to soon in most cases. Shatter takes me about 1 hour per gram to purge and honeycomb is double that so for a ounce of honeycomb it's about 2 1\2 days purge at lowest possible temp, 90-110* in a 5 gallon chamber with 2 stage 3 cfm pump. So many people just go straight to budder at higher temps trapping large portions of the solvent and residuals in there BHO. If you purge at a set low temp and don't agitate your oil under those same conditions or constantly release pressure and change parameters it will come out stable and will stay in that constant form indefinitely. De-waxing really helps to but that's not needed at all to accomplish the results you're after.
