What are the rules for adding extra ice to a drink?

The guideline stating that you should follow the standard mix lines and fill the cup size with as much ice as possible is correct because it emphasizes maintaining consistency and quality in drink preparation. By adhering to the designated mix lines, you ensure that the beverage retains its intended flavor profile and strength, as the mix lines indicate the optimal balance of liquid ingredients and ice.

Incorporating as much ice as possible within the appropriate limits allows for a refreshing drink experience while also accommodating customer preferences for a chilled beverage. This approach safeguards against over-diluting the drink while still offering the desired texture and temperature. It reflects the practice of maintaining standardization in beverage preparation, ensuring that each drink meets the established quality and taste expectations for Dutch Bros customers.