Answer:
Hygiene, meat storage, and proper sanitation.
Step-by-step explanation:
Upton Sinclair in The Jungle pointed out the violations of the meatpacking production. The book focuses on Packingtown with its poor sanitation and hygiene.
For handling meat in the factories, there should be proper storage to store meat and cleanness around the factory. Factory compound should be free of germs, dirt, and pest control.
The meat loaded in cover and clean carts for transportation.
Lastly, there should be proper sanitation to wash hands for men before and after handling meats.