Why does pork roast smell of ammonia?

Answer 1

The cheapest way for meat packaging plants to guard against product contamination is to treat it with an antimicrobial solution before shipment rather than use more expensive sanitation during processing. This highly reactive cleaning solution is similar to what we use to clean toilets. Chlorine dioxide is common. Pink slime is treated this way and now most everything else is too including pork, chicken, shrimp, etc.

Answer 2

An ammonia odor is caused by infection with Helicobacter, the bacteria that causes stomach ulcers. Pork roast that smells like ammonia means that it's going bad and should be tossed. The only exception is vacuum-packed pork, which might have an odor that should dissipate once the meat is rinsed under cold water.

Eating pork can cause many diseases.