how are you getting your solvent cold before you go again?
what temp are you actually extracting at?
how many points in your system can you give the temperature for?
are those filters insulated, or are you using them to warm up your tincture/ cool down your room air?
I recommend knowing as much as you can about what you’re doing. Collecting data is the first step in process improvement. If you don’t know that the fourth time your solvent hits your biomass it’s 25C warmer than it was when it hit the first bag, how will you ever address that issue.?
If the only temperature you’re taking is the one displayed on your chiller, you have almost zero clue what your solvent temp is.
Edit: 4 channel thermometers are awesome. Actually data-loggers are even better.