Going into this, it's best to expect cleaning your gas stovetop to take time unless it's practically brand new. There's lots of corners and crevices to get into and a lot more parts to deconstruct and clean than on other stovetops. Here's a rundown of how we tackle cleaning them and what products we personally like to use.
First things first, remove everything and vacuum up any crumbs/food remnants.
Since we already have our all-purpose cleaner of hot water and powdered tide made up, we always dip a clean cloth in it to wipe down the bare stovetop in order to get up as much as we can. You can do the same for the other parts of the stovetop that you've already removed if you like.
Next up, we spray the stovetop down with Dawn Powerwash. We also go head and spray down the other components as well such as the grates, burner caps, etc. Depending on how greasy everything is, you can let it sit for a few minutes if you'd like. When it's super greasy, you can literally see the Dawn lifting the grease. If we're letting it sit, we use this time to scrub down the burner caps as well as rinse and dry them thoroughly. We then set those aside until they're ready to be put back on the stovetop.
We spray the stovetop down with the Dawn Powerwash spray again before scrubbing using a non-abrasive sponge. Wipe away all of the excess Dawn and assess whether or not your stovetop needs a repeat of cleaning with the Dawn Powerwash spray, if there are areas that need a more powerful product, or if it's good as is. Feel free to repeat the Dawn Powerwash spray step as many times as needed to get rid of all of the grease. If you have burnt on spots that aren't coming up, move on to the next step.
For those tough areas, we pull out The Pink Stuff. You're going to want the paste, not the spray. We slightly wet either a sponge or brush before dipping it into the paste. You don't need a lot and can always re-dip your brush or sponge if needed. It's never a bad idea to start with a non-abrasive sponge to keep from scratching your stovetop but sometimes you will need something a little stronger to help you out. This takes time and elbow grease. You will have to repeatedly dip your sponge in the paste, scrub the stovetop, wipe away the paste, and repeat the process. Don't forget to rinse your scrub or brush before dipping into the paste again.
At this point, we wipe away all of the cleaning product with a clean cloth that is just wet with water. You can use windex to shine your stovetop afterwards if you'd like but it's not necessary.
If your stovetop has a griddle, we use the same process as the stovetop for cleaning it. You may want to use a toothbrush for the corners.
Once the stovetop itself is clean, you can begin putting the other components back in their respective spots as you clean them.
If the grates were very greasy and/or dirty, we usually will have sprayed them once or twice at this point with the Dawn Powerwash spray and let it sit. We then spray the grates down again before taking a brush to them cleaning every side. We personally like to use a tile brush but you can use a tough toothbrush to get the job done. After scrubbing, rinse thoroughly. Inspect the grates and repeat the Dawn Powerwash and scrubbing step again as many times as needed.
For the very greasy spots that just aren't coming clean with the Dawn, bring in The Pink Stuff paste with a brush. Take your time scrubbing each of the problem areas until you're satisfied with the result. Be sure to rinse throughly when you're done with this step. Additionally, you will want to dry the grates thoroughly including the bottom side. I usually clean each grate from beginning to end one at a time to keep them from staying wet for too long since they're usually cast iron.
That's it! The more often you clean your stovetop, the less time it will take. If you use your stovetop often, you'll want to clean it more often as well. We have spent 3 hours cleaning these stovetops before. We don't always have the time to get them perfect and often have to chip away at them at each cleaning until they're in good condition again. Even fairly clean gas stovetops still take time to clean just because of all the extra components. These can be some of the most satisfying areas of a home to clean; however, the rust builds up over time and burnt-on food spills that don't get cleaned eventually reach a point where they will not come up at all. At that point there's no amount of cleaning that you can do to completely remove the stain. Let us know if you have any questions or if you have a certain product/method that you like to use on gas stovetops!