Depending on printer you can dry it on the bed itself. I have a P1S resistor modded bed. Setting to “100C” makes it go to 130C and actual measured temp is around 110C. I cover the spool with an aluminized mylar sheet lined spool box to reflect heat. Leave it there for 10-12 hrs occasionally flipping and measuring the weight. Once I don’t get any more change in weight it’s done, I pulled out 10 grams of water on a new spool of sunlu pa6-cf. Then I feed through the eibos dryer box to keep dry during the print. I’ve been getting flawless results.