Home Home Decor The best oven cleaner! Cover bottom of oven with baking soda, then pour vinegar so it’s all wet. Let sit around 20 minutes or so then wipe all of it out with damp cloth or sponge. I leave my oven door open too. After drying you may see some white residue, wipe again. Julie B said: Whoa! My oven looks like I’ve never used it! This tip worked perfectly! :)