What does the modification "#°" indicate?

The modification "#°" signifies a temperature change, indicating that the beverage should be served at a specific temperature. This notation is particularly useful for ensuring that drinks are served optimally hot or at a cooler temperature, depending on customer preference or beverage type. For instance, a higher number might suggest a hotter drink, while a lower number could indicate a temperature meant for a refreshing or chilled beverage. This precise temperature control enhances the overall experience and enjoyment of the coffee, as various temperatures can alter the flavor profile and aroma.

The other options, such as the type of milk used, type of espresso, and flavor intensity, do not relate to how a drink is served in terms of temperature. These aspects typically have different indicators or notations that are more specific to their characteristics.