The powders work cold, some they work best warm. I go straight from material column to crc for small batch stuff. For anything more than a single run for me (5lb max), I do batch crc. When going straight to the crc, I always go cold.
I have a 6” wide 12” long closed bottom spool I use on the bottom of my collection vessel. When time to batch filter, I reduce down, open the collection and separate at the bottom spool and toss a lid on it with a dip tube.
I then plumb my 25lb gas tank to the the 6x12 spools vapor port and then from the liquid line to the crc and then to the collection vessel and avoid the injection coils completely. The gas is generally still cold, but I couldn’t say what temp.