One of the most common "accidents" while cooking in the kitchen oven, is to fall into it, fats. And because, this year, most people put the lamb in the oven or cooked other fatty foods, they would still have the above accident.
And the truth is that fats do not leave easily, while if you leave them and stay, it will take effort to remove them. But there is a material in the kitchen that makes your job easier.
See what this is and what the trick is to remove the fat:
The reason, then, for salt. And you can use it as follows: While the oven is still hot, spread a layer of salt and baking soda on top. If they are dry, wet the fats a little to get a better result. When the oven cools, scrape those spots and wash them afterwards. The result will impress you.