Here's why:
* Earl Grey is a popular choice for the British royal family. It's a classic blend with a citrusy flavor, known for its elegant and sophisticated nature.
* The Queen is known to enjoy tea with her meals. Earl Grey is a versatile tea that complements both breakfast and afternoon tea.
* It's been reported that Earl Grey tea was served at royal events. This suggests it's a tea favored by the Queen.
However, it's important to note that this is an assumption based on popular belief and anecdotal evidence. The Queen's personal tea preferences are likely a closely guarded secret.