All the EthicSport powder products do not contain any preservative, in order to be better digested. Recupero Extreme should be prepared and consumed immediately afterwards, however if it is consumed 2-3 hrs after its preparation it is still effective and healthy.
The best time to take Recupero Extreme is within 30 minutes from the end of exercise. If the product is taken later than that, it is not a big deal. The body will be a little less "hungry" and the nutrients could be a little less assimilated.