Doorknobs are made of brass since it helps them stay germ-free
Solid brass doorknobs fell out of favor a bit during the last couple of decades, largely due to the need to polish the metal to keep its shine. You probably use brass doorknobs on a daily basis, but have you ever wondered why they are mainly made of brass? It is definitely not due to the low cost of this material.
Brass is more resistant to germs, and since doorknobs are used by so many people, brass helps them stay germ-free. Moreover, this kind of doorknob is perfect for a household with lots of kids in case you want to prevent some diseases from spreading. So, if you do not have a brass doorknob, it is time to start thinking about getting one.