The water was from a French press washing of the ABV still in the plant material.
I was watching the crock pot for 3 hours and it never boiled over. I fell asleep and woke up 5 additional hours later to a good amount of bubbles around the perimeter of the crock pot, not quite a rolling boil.
Did I kill off the THC? Anyone do this and have product turn out okay?
I have about an oz of smalls I want to make oil with in the crock pot, but I don't want my stink up the apt with my daughter here. I was planning on actually just leaving it on the fire escape while it cooks, which I've done before with a rotisserie and a pressure cooker for the same reason. But I don't want to have a strong weed smell drifting upstairs into my neighbor's window for 4 -6 hours. Has anyone made this who can let me know what to expect?
As the title says, I was distracted and forgot to brown my ground beef before adding it to my Crock-Pot with the other ingredients. Any suggestions on how to fix this? Or am I okay to let it cook but maybe just at a higher temperature? Any suggestions would be appreciated!
Okay so the bang-bang controller did okay, but the temperatures varied quite a bit no matter what I set the hysteresis to. Its average temperature was consistently below the set temperature, but that could easily be fixed with a simple "bump" variable. Not really worth it though, since both .25 degrees and .5 degrees hysteresis had pretty much the same wildly flailing result: BANG-BANG with .25 hysteresis
The PID controller with 10-second cycle, after only having the P-variable tuned, immediately outperformed the bang-bang, staying within 1 degree. It was also consistently below the set temperature, which was to be expected without the I variable tuned. An attempt was made to tune the D-variable to dampen the quasi sine-wave, but this proved pointless due to the fact that my thermometer lacked the precision needed: over the course of a 10-second cycle, the thermometer reading usually did not change at all, resulting in the D-term of the PID returning 0 almost every time. So, no dampening was really possible, until I noticed that most of the "momentum" of the system was in the downward (cooling) direction, and could be artificially dampened by restricting the control variable's outputs to between 5 and 10s per 10 second cycle. This proved to be the best setup with a nice, tight adherence to its mean temperature. Once the final setup came to equilibrium, the temperatures recorded were typically within .25 degrees of the center. Much better than I thought I'd be able to get.
The biggest blindside was the precision affecting the derivative. This thermometer only has 4 bits devoted to the decimal place, resulting in a resolution of .1125deg F. So the readings are too "chunky" to calculate a reliable derivative without getting creative. I suppose you could interpolate somehow to resolve this issue.
Again, thanks for the input! It was a fun project.
