To start, you should steam the inside of your microwave. That bad boy has all kinds of splatter caked and crusted on the interior and steam is going to loosen it up. Steam is a powerful tool for cleaning, as is citric acid, so this one is a no-brainer. Around the internet and CleanTok, you'll find suggestions ranging from doing this with a half cup of water to a full cup, a half lemon to a whole one, and for three minutes to five minutes, with five minutes or 15 minutes left over for the steaming. That can all get complicated and annoying, which I discovered today. Due to a recent incident in my microwave, mine was looking exceptionally bad inside. Here's the lemon-infused protocol I followed to get the ball rolling:
I microwaved on high for three minutes, checking to see if steam was forming toward the end. If you don't see any steam, give it another minute (my steam is visible on the cupboard above the microwave, which is how I knew it was working).
When you open the microwave, you should see that what was once crusted onto the walls and ceiling of the machine is now kind of soggy and should be easy to wipe up with a sponge. I used a Clorox wipe to remove mine, just for added disinfecting power. Plus, it always smells nice and lemony. Be warned that this may take a few rounds: In the past, I've noticed the crust and splatter near the top was much easier to remove than anything on the bottom, since the steam travels up, but on my most recent attempt, it was the gunk at the bottom that came off easier after one round of steaming. Oh, and if your turntable is removable, take it out and soak it in warm water while you wipe out the interior, then scrub it with a sponge.
Step two: Clean the exterior of the microwave
The way you clean the exterior of your microwave depends on what's stuck on there. If it's greasy, use a mixture of one part vinegar and one part water to gently scrub. If it's splattered but not greasy, try a mix of one part rubbing alcohol and one part water. You can also use a damp sponge dipped in baking soda for heavier-duty messes, but be sure to follow that up with plain water.
You don't need specialty products beyond what you have around the house already to get the inside and outside of your microwave gleaming, but you do need the know-how and a bit of time.
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