What is a characteristic of Chilled shots according to mixing guidelines?

Chilled shots are typically characterized by being served cold, not necessarily by the method of preparation involving ice or additional ingredients. The important aspect of chilled shots is that they are intended to be served at a low temperature; however, they do not always require the actual chilling process to occur. While many chilled shots may be served after being shaken or combined with ice to ensure they are cold, the guideline does not dictate that they must be chilled through those means. This means it's possible for a shot to be prepared and served chilled without direct ice involvement in the mixing process, such as using pre-chilled spirits or ingredients.

In contrast, serving over ice, shaking with ice, or including fruit juice impose additional conditions that are not universally necessary for all chilled shots. Therefore, the correct understanding aligns with the flexibility around how to achieve the desired temperature for the shot.