For anyone that is curious, once a chain has been hot-waxed properly with wax (and a bit of teflon) the cleaning is easy. Just remove big dirt and grime with a chain cleaner filled with water and a touch of soap.

Then remove the chain and immerse and swirl it in very hot (near boiling) water for a minute. Immediately wipe the chain down with a clean rag to remove any residual dirt and water.

Hang the chain to air dry and reattach to bike when ready.

I find it best to keep two chains in rotation so that i am not tempted to keep riding a dirty chain. Dirt in the bushings is the chain killer.

How often to clean? Depends on the conditions but I go by sound. The chain sounds louder when it needs to be cleaned. I never go more than 200km max (a week or so) without cleaning and usually much sooner than that.

Highly recommend Wipperman Chains for long life and amazing quick connects.