If a person makes a brocho on a certain food and then he receives some more food that requires the same brocho, the halacha is if they had in mind to eat additional food, they do not have to make a new brocho. For guests, the halacha is that as they are eating in a home in which they do not know what will be served next, they are considered as though they had in mind all the foods that are brought out. Similarly, if the second food was present in front of the person while they made the brocho on the first food, they do not have to make another brocho. However, if the new food is more choshuv, significant, there is a machloikes, a debate, whether the brocho on a less choshuv food can cover a food that is more choshuv. It is always preferable that whenever a person makes a brocho on a food they have in mind that any other food that is brought out should be included in the brocho, even foods that are considered more choshuv. In such a way, one avoids many debates and disagreements whether the first brocho can cover the additional foods.