It's easy to overlook and neglect the hood over your cooking range while cleaning, until you happen to glance up and notice the layer of caked-on grease that's been accumulating for months. The hood's grease filter is typically even worse. It's nothing that you can't handle, however, with household cleaning products that are effective at cutting through grease.
Soak a cotton rag with dish soap and hot water and scrub the cooking range hood vigorously. Liquid dish soap easily cuts through grease. Look for dish soap with labels like "tough on grease" for the best results. Wipe the hood dry with a clean, dry rag.
Remove stubborn grease by dipping the wet cotton rag in a little baking soda and scrubbing vigorously. Dissolving grease is one of the many capabilities of baking soda. Wipe down with clean water and dry.
Use a solution of equal parts ammonia and hot water to remove extra tough grease stuck on the hood. Allow the mixture to sit for a few minutes to allow the ammonia to work before rinsing off and wiping the hood dry.
Cleaning the Filter
Remove the filter screen from the hood. You may need to release or unhook latches to remove it, depending the type of oven hood you have.
Fill your sink or a large basin with hot, soapy water and place the filter in it to soak. Add a couple tablespoons of baking soda for extra grease-cutting power. Let it sit in the water for up to 30 minutes.
Scrub the filter with a non abrasive brush to remove oil and food articles. Repeat the soaking with fresh hot water and soap, if necessary
Rinse and dry thoroughly, then replace your clean filter in the appropriate spot above your cooking range.