USDA Employee Blows Whistle On Beef's 'Pink Slime'

Beef trimmings (formerly used in dog food and cooking oil) are now sprayed with ammonia and added as filler to 70% of ground beef, according to Gerald Zirnstein, a former USDA scientist.

Mar 8, 2012

Beef trimmings (formerly used in dog food and cooking oil) are now sprayed with ammonia and added as filler to 70% of ground beef, according to Gerald Zirnstein, a former USDA scientist.

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