When should a frozen drink be blended?

The correct answer emphasizes that a frozen drink should be blended specifically when the customer orders a blended version. This is key to ensuring that the drink meets the customer's expectations and preferences. Blending the frozen drink provides the desired texture and consistency, making it a crucial part of the service. When a customer explicitly requests a blended version, it signals their desire for that particular preparation style, highlighting the importance of customer choice in crafting their beverage experience.

In contrast, blending only upon request might not address situations where a customer assumes the drink will automatically be blended unless specified otherwise. Blending regardless of temperature overlooks the fact that some drinks may not require blending if they are not meant to be served frozen. Lastly, restricting blending only to large sizes would not adhere to standard procedures for all sizes, which can lead to inconsistency in product presentation and customer satisfaction.