1, this depends on the specific practice to decide, if the chicken breast is used to fry eat, it is best to marinate a night in advance is the best, if it is used to stir fry then marinate a 10 minutes or so can be.

2, chicken breast marinade either at room temperature or refrigerated area is not recommended to marinate a night, because it will breed a certain amount of bacteria and other microorganisms, the safety of the ingredients have a certain impact, and there may be odor, decay and other deterioration, in addition, marinate a night will cover the original flavor of the chicken breast, which reduces the edible taste, and, secondly, the chicken breast in the protein, vitamins, minerals and other nutrients will be most of the loss of the chicken breast, the chicken breast will be the most important thing to do, the chicken breast will be the most important thing to do, the chicken breast will be the most important thing to do, and it is also the best thing to do, Secondly, the chicken breast protein, vitamins, minerals and other nutrients will be most of the loss of food value also has a certain impact, generally recommended that the chicken breast marinated for 4 hours to eat better, in terms of taste and nutrition are more superior.