Grapefruit

Grapefruit is a large yellow fruit with a somewhat acid juicy pulp. It is a known flavour of Bertie Bott's Every Flavour Beans. In 1994 while Dudley Dursley was on a diet his mother served quarter pieces of grapefruit for breakfast to the family, giving Harry the smalles portion.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Goblet of Fire