One of the most important things you can do when writing a review about a food is to describe everything in detail. This includes how it looks, smells, and tastes. You want to paint a picture for your readers so that they can get an idea of what potentially awaits them. On paper, the idea is that you can taste good quality ingredients and be able to discern foods prepared with the highest level of skill and effort.
But the truth is that this category exists mainly because I think that some junk foods or fast food taste delicious, but I can't say that it's a good food objectively. 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. I know that some people don't care at all about the price when it comes to reviewing food, while other people's experiences when eating are completely determined by the price of the food. Although food review apps like Yelp store large amounts of information about each restaurant, they ultimately reduce a restaurant to a single number of 5, as if that were the only indicator of how good a restaurant is.