What are problems that Sinclair identifies in the text?

Sinclair identifies numerous problems in the text, but it is important to understand that the novel itself had a political agenda, as well as an agenda to expose the many horrific problems and atrocities within the meat packing industry.

The meat packing industry is justly under fire. Sinclair identifies gross neglect within the plants, unsanitary conditions, spoilage, and misappropriated food stuffs. His imagery, particularly, when he takes us into the plant and brings to light exactly what happens to the meat processed by these industries is enough to make one a vegan. In my opinion, his work aided in cleaning up the industry.

Other problems identified had to do with employees in the industry. Poor wages, underage workers, danger, death and injuries. Injuries that weren't followed up with proper care or compensation, regardless, that people were unable to work again, pay their hospital bills, or feed their families. Even workers who held down regular jobs still found themselves living in poverty.

Those are two of the identified problems... I hope it helped.