Avoid superlatives (“best “, “amazing “, etc.) Try, for example, comparing a dish to one you've eaten somewhere else. Don't post a negative comment about something like food that came out cold, an overcooked steak, or a flat glass of prosecco without first trying to talk to the staff. You will rephrase your thesis statement and highlight the importance and usefulness of your food review. So the reasons why I think this is the worst fast food restaurant in the world are McDonald's in Cedar City, Utah, 200 to the north, are still because of rude employees, a very dirty store, inaccurate orders and poor quality food.
A good food review places the reader at your table with you, allowing them to decide if they want to visit the restaurant or not when they finish reading.