When it comes to selecting between alcohol and hydrogen peroxide, important aspects should be considered. There are pros and cons to consider when it comes to the substance that kills more bacteria and virus. For instance, did you know that alcohol soaks for 10 -15 minutes will kill most bacteria on metal, like tweezers or scissors? At the same time, it burns like hell in open wounds. Keep in mind that hydrogen peroxide is not recommended in humans. Many persons use alcohol to disinfect their home.