What does "iced fill lines" refer to in beverage preparation?

"Iced fill lines" refer specifically to the designated measurements indicating the amount of ice that should be added to cold beverages. This line helps ensure that the drink is prepared consistently, maintaining the right balance of beverage to ice for taste and texture. When a beverage is filled to the iced fill line, it results in a drink that is properly chilled without being overly diluted by the ice, allowing for an optimal customer experience.

The context of the other options involves different aspects of beverage and food preparation, but they do not pertain to the role of iced fill lines in the process of making cold drinks. The focus on ice in option B aligns directly with the purpose of iced fill lines in beverage preparation.