Ginger of commerce is the dried underground stem of the herbaceous tropical plant grown as an annual. The whole plant is refreshingly aromatic and the underground rhizome, raw or processed, is valued as spice. Ginger is a slender perennial herb, 30-50 cm tall with palmately branched rhizome bearing leafy shoots. Important flavour compounds in Ginger are Gingerol, Shogaol, Neral, Geranial. It is a tropical plant with the centre of origin in India. Ginger requires warm and humid climate and thrives well from sea level to an altitude of 1500 mtrs above MSL. A well distributed rainfall (150 to 300cm) during growing season and dry spells during land preparation and harvesting are required for the crop.

Fresh ginger, dry ginger powder, oleoresin and oil are used in food processing. It is indispensable in the manufacture of ginger bread, confectionary, ginger ale, curry powders, certain curried meats, table sauces, in pickling and in the manufacture of certain cordials, ginger cocktail, carbonate drinks, liquors etc.