How to clean nozzle after PLA?

How to clean nozzle after PLA?

Acetone not work?

I am not sure what type of chemical with clean PLA from a nozzle but what I do is load ABS through a few times to remove the PLA. 

I am not sure what type of chemical with clean PLA from a nozzle but what I do is load ABS through a few times to remove the PLA. 

Thank you!

How to clean nozzle after PLA?

Acetone not work?

Ive found that the eSun cleaning filament works great between filament change on my e3dv6 hotend printers. Maybe give that a try?