Crude Fat results could be low for any of the following reasons:
 
  1. The extraction was not run for a long enough period of time.
  2. The sample was not post-extraction dried enough.
  3. Fat migrated from a bag during the pre-dry step.
  4. Desiccant was either not used or incorrectly used during the post-dry phase.
  5. The water was not turned on or the flow meter was turned down.
  6. There was too much sample in the bags or too many bags in the instrument.