 Jif is a brand of natural strength lemon juice prepared using lemon juice concentrate and water , whereby the concentrate is reconstituted using water . After reconstitution , it is packaged and marketed . It is sold in the United Kingdom and Ireland by Unilever . Jif is used as a <unk> and ingredient in dishes , and as a condiment . Two tablespoons is around the equivalent of the juice of one lemon . The product has a shelf life of six months . 
