How many of you guys and ladies are trying to clean yer DEs (or other kinds of razors) once a week with hot water, a toothbrush and toothpaste? And how many times do those razors look like brand-new afterwards? Well, I've got a suggestion for you. I bought an industrial-grade ultrasonic-cleaner a few weeks back and am in love with it. You can just about clean everything with it. Watches, Keys, Lighters, Rings, Jewellery, glasses, third teeth... and you can also use it to easily clean your DEs. Those calcium deposits on the razors are hell to get rid of - even for those ultrasonic cleaners. Where plain water or a drop of dish liquid does it easy for most things, you need something stronger here. I for myself use a few drops from a bottle of bathroom/toilet-cleaner, it's designed for exactly that kind of dirt - but, as always, YMMV. I've taken some pictures for you of how well my DEs clean up in about 6 to 7 minutes in the machine. Disclaimer: Please note that I don't take any responsibility whatsoever from any damage / loss of coating or any other problems that could arise from following this advise. Brands shown are only what I work with and do not exclude any other brands of cleaner that might work equally well or even better. (As long as you use any brand of industrial grade ultrasonic-cleaner and not that cheap 20$-plastic-stuff you should get great results). Please also note that these pictures and this guide are made/written for theshaveden.com and may not be used by anyone else than myself in any different way or any other location. Now for the pics: Here's a Merkur HD and a Gillette Adjustable ('62) after several shaves each. Don't they look dirty? A look at the machine: There you go, don't they look great? Whatever kind of "dirt" may seem to be left on the adjustable is actually the brassing and/or normal wear of an often used razor at the age of 45 years Both razors have only been rinsed with fresh water afterwards and were dried in the sunlight - no polishing/wiping Questions? Suggestions? Post 'em if ya got 'em!