Take your razor apart.
Bring the water to a boil. Boil the safety razor for a 25-30 minutes. While this is going on get your badger brush and prepare to clean it.
If you're shaving right, you're getting olive oil on your brush. Every month or so give it a good wash. Get your trusty brush and run it under some water. Add a little bit of your favorite hair shampoo. Add a drop of dish detergent. Simply swirl it around on the side of your sink. Rinse it really well, and shake it out. Nice and simple.
After your safety razor has been sitting in a pot of boiling water for a while remove it from the burner. Don't add cold water to the pot, just sit it off to the side for a while until you can retrieve the parts with your hands. Adding cold water instantly could damage your equipment.