I extract my terps before hand using a freeze dryer. This removes water as well, and keeps the ethanol you do your wash with from absorbing and holding some terps.
-cryo wash, 5 mins
-add 2% terps once roto’d down to a thick syrup. let spin on roto at like 70 rpm to homogenize.
pour onto parchment paper, and into oven at 130F
-Purge both sides multiple times, normally about 2 hours at this temp. You can lower the temp to 120 and continue until you think the ethanol is low enough. These higher purge temps are in my opinion necessary to get the ethanol out.
-The messy part. oven at 120F. Take your shatter you have just made, and ball it up into a patty. Flatten out, and spread 1% terps onto the shatter patty. You will get terps all over your hand and the silicone sheet you should be working over. Pull the shatter like taffy, over and over until there are no more terps on your hands. Feel free to roll the shatter in any terps that drip onto the silicone. Pull like taffy till no more terps and the shatter is a much lighter color and looks shinny. Put back into the oven to set for about 10 mins.
- Repeat this until the amount of terps you want are in, I do 5%, 2 before the pour and then 3 with the pull method. for more crumbly consistency, use only the 2% you initially put in. for more buddery, add more.
-Once all your terps are in, let your patty sit in the oven at 120 until it completely waxes by itself. You can take it out every couple hours and re pull it. Normally takes about 5 hours.
It’s hard to get enough ethanol out without losing the terps, unless you use this method.