Lemon Barley is a refreshing and citrusy drink that is popular in Pulau Pinang. It is made by boiling barley with water and sugar, then adding lemon juice for a tangy twist. The drink is often served chilled and garnished with a slice of lemon. Lemon Barley is known for its cooling properties and is a great choice for hot summer days. It is a light and refreshing beverage that is enjoyed by many.