Why does food go bad?

Holdings

hidmidmiidnidwidlocation_codelocationbarcodecallnumdeweycreatedupdated
31396941512242254465916645230BYRE121BYRE10353E 664 PRO66415774597521709567815
59602743501022291465916645230WCOW477T 370097664.001 PRO66415774597521709567815
65752044042002305465916645230FADU173FADU97006641 PRO64115798937721736518457
275134462417062383465916645230GMP294GMM0019879664.001 PRO66416377825731736800991
375825770758272388465916645230GEP229GVW0060164664 PRO66416950443851736800991
397606572490842397465916645230NAE338NAE00161404664.001 PRO66417368009911736800991