I clean my nozzles with the following method.
Heat the hotend to printing temp.
Put on leather gloves.
Fold up an old cotton washcloth to make a thick pad.
Wipe the hot nozzle vigorously with the dry wash cloth.
If it needs a little extra cleaning, I use a blue scotch brite pad.
The extruded filament should drop straight out of the nozzle. If it is curling at all, you have a partial blockage inside or right at the tip. These types of blockages can sometimes be cleared by raising the hotend temp and extruding plastic. If that doesn’t work, I use a drill bit smaller than the nozzle size to clear the orifice. I just heat the hotend to printing temps and gently insert the bit into the nozzle, move it up and down a few times then extrude more plastic. Repeat as necessary. Using this method, I have not needed to remove a nozzle for several months.