Will expire, and expired a long time. Cold powder can be placed in the refrigerator for 3 to 5 days, in general, the good cold powder is not recommended to be placed for too long, it is best to do now to eat, in the frozen conditions, the composition of pea flour will be mutated, destroying the original structure of the organization, and the need to save the cold powder must be free of any impurities, that is to say, we have to eat as much as we want to take as much as we want to eat, and the other ingredients stirred after the cold powder is necessary to immediately Eat up, can not continue to save.