If you use many different materials in your printer, we've created a great filament to clean your 3D printer's entire extruder.
Clean the extruder to properly maintain your 3D printer and thus increase the operating life of your hotend.
Temperature is the main factor for this material to be effective when cleaning your 3D printer's feed system. To do this, you should heat the extruder until it reaches the temperature of the material you previously used. For example, if you have previously used ABS, you should set the printing temperature to around 240°C or so.
Next, load the SMART CLEAN FILAMENT and extrude a certain amount of material.
Finally, remove the filament and insert the material you want to print with.