Limit the number of people in the kitchen to only those who are needed. When taking the lid off a pan of hot food, open it away from you so the steam does not rise up and burn you in the face. Keep children out of the kitchen when serious cooking is going on. Unplug electrical appliances when cleaning. Use sharp knives.
Dull knives cause more accidents because they are harder to use.
When chopping food, use a cutting board. Don't cut in your hand. If you spill hot food or liquid on yourself, run cold water over the burn, do not put butter or grease on the burn. Have a fire extinguisher in your kitchen and know how to use it. Take it out in the backyard and practice if you need to.