Lemon

Lemon is a small evergreen tree, and its fruit is yellow and oval in shape. This fruit is used in cooking and other uses around the world, especially for its juice, although the pulp and peel are also used, especially in cooking and baking. Lemon juice contains about 5% to 6% (about 0.3 molar) citric acid, which gives lemons its sour taste, and a pH of between 2 and 3. Many lemon-flavored drinks and foods are available, including lemonade and lemon sorbet. The distinctive sour taste of lemon juice makes it an essential ingredient in many dishes around the world.