How do you clean yours?

I use a long piece of plastic covered wire, similar to the ones you get for fastening freezer bags. I think originally it was one of those that are used used to hold something still in a packaging box.

I haven't got a hole in my fridge, so no cleaning required.

Mine came with a “thingy” to do this . It’s just a piece of plastic with a ring . Completely useless and ineffective so I too poke twisted bits of kitchen roll into the hole . Not sure if there’s anything better ?