90C water thru the jacket and under vac for an hour does the trick for me. I prefer not regenerating in an oven due to the dust created moving the beads around
This is my post from a few weeks ago, very similar situation here. I had to stop running active recovery, switched to passive and run all solvent over 13x beads as a liquid phase before distilling and running over 13x beads as a vapor phase. I am still seeing fast crashing after pouring off but it has been much more manageable and it stopped the crashing out during recovery.
Are you using isobutane? Apparently this is the cause of all this. Everyone needs to stop using isobutane. Even if you don’t use it, it’s isobutane causing problems. I don’t use isobutane, but apparently that’s the issue. If you’re using 100% Normal Butane, your problem is isobutane. Why? Because someone has had fast crash issues with isobutane and they are thinking that it is the same problem as everyone else, so it’s isobutane.
It could be that your active recovery pump is pumping faster than you are providing heat back into the oil and this particular batch is fresh and high in thca so it causes it to crash. What temp is your heater set to?
It’s kinda like when you redissolve isolate. You have to go hotter temps to prevent it from crashing out as you recover to keep it in an oil form, so if this particular batch is high in thca, it will have the same issues when recovering.
I’m sure it’s the same with the OP, but my process hasn’t changed in 6 years, so why all the sudden the issues? why now my pump is recovering faster than i can provide heat? I have always ran recovery at 35c and around 1-5psi. I have tried adding more heat to increase pressure but had the same results. There is obviously something going on with the solvent.
I have also noticed that if I pour off and start to whip into a badder immediately i can get a good consistency, but if im running out of time on the day and drop the pyrex on dry ice over night ( like I have done 1,000 times before without issues) the pyrex will start to crash out immediately after pulling it out of the dry ice the next morning. Within an hour an entire 1,500 gram batch will be crashed out while the pyrex itself will still be cold to the touch. I used to be able to get the pyrex up to temp before whipping for 4 hours and getting into a badder consistency, now instant sugar!
Dred- I know you used to run a heavy Isobutane, I did too for a couple years, my question is has anyone running heavy Isobutane mix or heavy Propane mix noticed these issues or is it just the people running Nbutane and 70/30 Nbutane/Propane mixes? I am thinking about getting a batch of 80/20 Isobutane/Nbutane and see how it reacts
I’ve seen it with passive too. Just to be clear I’m not talking about Medusa stones. From what I know Medusa stones are stones that crash beautiful and then turn chalky after a day of harvesting. This issue we’re talking about here is a fast crash during recovery. At least from my experience, it’s a unique scenario where the material is high in thca, recovery is to the point where it’s pulling a vacuum(if passive) and the recovery heat is low. @MIextractor its not that you’re are recovering faster now, it’s that the material is mainly thca is what I’m trying to say.
For example this material tested at 99%. It was crashing as it was off gassing in the jar due to how high the concentration of thca was. If I heat up the jar without losing any solvent, it will redissolve the thca that started to crash
Hey man I was just pointing out that isobutane is the biggest contaminant in n butane. You can even check the coas posted by big oil on the gas they had tested in these threads.
Isobutane boils off at -11f and fits the description for higher pressure, exploding jars, cold crashing, and chalk-like nucleation. Pentane would remediate this as well as maintaining higher pressures than a sealed mason jar with Isobutane would allow. Move that over to a miner and you can dissolve more and keep the solution crystal clear vs milky. A milky solution is an indication of microcrystalline slowly falling out of solution. This can be seen at low pressures and negative pressures. As you apply pressure all that chalk gets pushed to the bottom but never gets fully redissolved in a jar.