Cook food thoroughly, especially meat products and seafood, to kill any bacteria harmful to the body, such as E.coli, a bacteria that enters in food and causes disturbances in our system. A long-term effect is kidney failure, Salmonella is the bacteria that causes food poisoning, and listeria can lead to brain and nerve damage in an infant. Store food at a safe temperature, to prevent food from spoiling, micro-organisms can multiply very quickly. Dangerous microorganisms still thrive below five degrees Celsius. Separate raw and cooked foods to avoid transfer during meal preparation. Cleanliness is right next to godliness, it is in an executive chef's best interest to keep his kitchen free from misbehavior..