I have noticed the consistency differs between batches - sometimes it seems more "solid" other times more "foamy".  Other than that I am very thankful for this stuff!  My male cat was getting UTI's because they were fed kibble and apparently not getting enough liquid in his diet.  After switching to Wellness that hasn't happened once.  Only one problem... he will ONLY eat the turkey version.  And refuses any other brand even if it's turkey.  My poor female cat will have to eat this the rest of her life (she's fat, she's ok with it!) because he loves it so freakn much!