First off id like to say that there is multiple ways to skin a cat this is just the method i have found success replicating.
with this method we use media bros CRX media and 70/30 solvent. With fresher material (indoor) i tend to use 75-100 grams per LB of biomass. on other material upto 250 grams per lb pending age and quality.
i inject using a dry ice coil and run the extraction very cold.
pretty standard extraction stuff.
(if you are using a pour spout make sure this was cleaned very well before running any sugar built up will nucleate and cause your jars to sugar up)
once your run/s are finished you want to pour with solvent in your “mother liquid” (i use a 2500 ml beaker)
once your pour is in the beaker you want to let the butane off gas until you reach the proper viscosity. a key tip i look for is when butane bubbles start forming large big bubbles vs small one that pop easily.
At this point you want to pour your jars (wide mouth half pint jars only) approx 2/3 full. DO NOT CAP IMMEDIATELY!!. This is the magic part!! now that your jars have been poured… again let them off gas a bit until you get the “PUDDIN SKIN” (like home made chocolate pudding) at this point go ahead and cap your jars.
place your jars in a dark place (not inside your ovens) for 24 hours. after that migrate the jars into the ovens. (putting them directly into the oven exchanges too much energy and causes the lids to leak via too much pressure build up too fast) after your jars are in the ovens make sure the window is covered.
i usually leave the jars for approx 2-3 weeks and done
TIPS n TRICKS for better results:
Seeding- seeding helps the thca build up more localized on the bottom building bigger clear stones
Jar etching- etching the bottom of your jar helps cause nuculation points and helps finish the process faster