Lemon juice is used in tandoori marinades to tenderize the meat, add a tangy flavor, and help the spices penetrate deeply. It also acts as a mild preservative.
Lemon juice, being acidic, plays several crucial roles in a tandoori marinade. First, the acid helps to break down the proteins in the meat, making it more tender. This is especially important for tougher cuts of meat often used in tandoori cooking. Second, the tangy flavor of lemon juice complements the rich and spicy flavors of the other ingredients in the marinade, creating a balanced and complex taste profile. Third, the acidity helps to open up the pores of the meat, allowing the spices and other flavorings to penetrate deeper, resulting in a more flavorful and aromatic dish. Finally, the acidic nature of lemon juice also acts as a mild preservative, helping to extend the shelf life of the marinated meat for a short period.
Don't over-marinate the meat in lemon juice, especially if using delicate proteins like chicken or fish. Excessive marination can make the meat mushy. A few hours is usually sufficient.