Some crumbled pieces in the freeze-dried sliders can be normal and expected, especially when purchasing product online and having it shipped to your home. These crumbled bits are perfectly safe to feed and an approximate measurement for these is a 1/4, loosely scooped measuring cup is equal to about 2-3 sliders.
Another fun idea is to save these crumbles and use them as an extra topper to your pet's normal meals!