Food safety means making sure that food is safe and healthy for us to eat. It means that food is prepared in a way that keeps it from making us sick. People who work in restaurants, grocery stores, and other food places have to learn special rules about food safety. For example, different kinds of food should be kept at different temperatures and cooked for the right amount of time. They also need to make sure that the food is eaten within a certain amount of time or thrown away, so it doesn't get spoiled. It's so important for us to know about food safety, so that we don't get sick when we eat.