Adding too much salt

Adding too much salt to your dish doesn’t only make you want to chug a glass of water, it’s also really unhealthy. Add a little sprinkle of salt as you cook your food and taste it to know when you’ve added the right amount. Overdoing the salt is just one of the things you’re doing in the kitchen that professional chefs wouldn’t.
Not sifting the flour

If you don’t sift your flour when cooking it can lead to lumps. People often run into this problem when making gravies and sauces. If your sauce has a lot of lumps, throw it in a blender to smooth it out.
Overcooking pasta

Nothing ruins a dish like mushy pasta. If you let the water boil for a little too long run your pasta under cold water for a few minutes to stop the cooking process and contract the starch. When you add tomato sauce it will make the pasta warm again. If your mushy pasta is beyond repair, add it to a batch of minestrone or chicken noodle soup.