Gotcha. I ask because I recall someone posting data in one of the “seeded hemp” threads where they extracted seeds only with ethanol (probably -40, not certain) and got essentially zero yield.
CO2 will probably strip those seeds quite effectively…
You might want to stage your winterization eg: rm temp, then -20, then -40 or whatever you’ve got.
Edit: found the thread Sift Seeded bud before turning into distillate? seem to have merged a couple of data points over the years