Why was Jurgis impressed when he first inspected the packing plants?

When Jurgis visited the durham's meat packing plant she saw that the diseased meat were injected with chemicals, spiced and canned to be sold in the market. Some of the packers buy rancid butter and they oxidize it to get rid of the odor.The men working there were also inflicted with some disease. The butcher often get cut and work with the bleeding hand and contaminate the meat. the meat of different animals are packed and sold with the name of some other animals.

Explanation:

Hence, the trip to meat packing plant was horrible and pathetic. That was so unhygienic that after seeing the conditions there, it is impossible for a person to buy the meat and eat it with a trust.