Sodium nitrate, red dye
is added to meat
after animals die.
It can cover gray, black,
or the hues of gangrene,
many colors but not green.
*
Footnote:
'Deer with old wounds develop abscesses filled with yellow, green or even black pus.'
Gangrene in animals and their flesh can be
'pale to blue, purple, black, bronze or red'
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