Generally,  puree foods last for 2 to 3 days. But if you keep them for more than 2 or 3 days, the taste of the purees change and become a little icy.
Another thing I noticed is that puree can be kept in the refrigerator for nearly 90 days if the refrigerator is highly organized or has no other raw foods. The good side of keeping puree in the freezer is that it helps decrease the chances of microorganisms lying on the purees. If you want to keep purees for long days, you need to tightly close the lid of the boxes with the foil paper.