<P> The Terry 's Chocolate Orange comprises an orange - shaped ball of chocolate mixed with orange oil , divided into 20 segments , similar to a real orange , and wrapped in orange - skin patterned foil . When packaged , the segments are stuck together firmly in the centre ; therefore , prior to unwrapping , the ball is traditionally tapped severely on a hard surface to cause the segments to separate from each other ( dubbed `` Tap and Unwrap '' or `` Whack and Unwrap '' ) . </P>
how many pieces in a terry 's chocolate orange
20