Freshening up your keyboard isn't something that a lot of people can handle. Cleaning up your keyboard from all the debris and dust that has accumulated inside it over the passage of time requires a lot of precision and the ability to think smart. Keyboards are often one of the most germ-laden places at your workplace and home, which is why you are better off cleaning them.
Just like a couple of places above you are also required to make a water and vinegar solution over here! When the half water, half vinegar solution is made, just dip an old toothbrush in it and then rub it on to the keyboard. Make sure to address all crevices and other details to ensure that no dirt has been left on the appliance. This would help you clean your keyboard for good.