Lemon is considered as leading acid citrus fruit. Lemon is available in green and yellow. When the fruit is ripen colour of the fruit will be in yellow. The native of lemon is Northern India. Lemon tree can grows up to 10 to 20 ft. The skin layer of the lemon is available in thick and thin. The thin layer fruit contains more juices. Slices of lemon are served as a garnish on fish or meat or with iced or hot tea, to be squeezed for the flavorful juice. Lemon is used in candies also. Lemon are available in juices, concentrated and frozen, or dehydrated and powdered, is primarily used for lemonade. In India lemon is used as pickle. Even lemon is used as cleaning agent. It is important in perfume blending and especially in colognes. Lemon oil is used in furniture polishes, detergents, soaps and shampoos.