How do I clean my greasy stove hood screen?

This solution always worked for me. Try that pin https://www.pinterest.com/pin/255297872612334219/

If you can take the screen part off....put into a pan with boiling water and baking sofa and boil for 20 minutes. It comes out sparkling clean.

I soak in the kitchen sink in hot water and blue Dawn dishwashing detergent. Works like charm.

I would soak it in a pan with diluted degreaser. You can use the dishwasher but I have heard people complain that it will degrade the material in the screen.

If they won't fit into the dishwasher I would soak them in the sink in nearly boiling water with tons of soap. If it's a woven screen they can be hard to clean well so use a stiff bristle brush to scrub the grease out then pour nearly boiling water over and through the screen. Prop them on top of a bowl so you don't burn your hands.