How to report the Description as per USP

Dear all,

In USP Description and Solubility section one of the product description mentioned as "White or almost white slightly hygroscopic crystalline powder. "

My question is should we check each and every batch for hygroscopicity since it is part of description specification. Usually we are testing first 3 batches for hygroscopicity and thereafter we are concluding whether the product is having hygroscopicity nature.
But in this scenario product description specification itself having Hygrscopic.

Kindly provide your valuable response and practice to understand the actual.

Hello…
I dont think that Hygroscopycity is to be checked for all batches as it was already checked and it is part of description. More over the molecule itself consists of water molecule.