Final answer:
The statement "Rotten meat was packaged in sausage casings to conceal its condition." is 2) false because according to historical evidence, poor storage and contamination issues in the meatpacking industry rather than intentional concealment of spoiled meat using sausage casings.
Step-by-step explanation:
Historical evidence points to numerous practices of food adulteration and lack of sanitation in the meatpacking industry, particularly during the late 19th and early 20th centuries. But the claim that 'Rotten meat was packaged in sausage casings to conceal its condition' is not supported by the information provided. Rather, the historical context suggests that meat storage conditions in slaughterhouses were poor, leading to contamination by rat feces and even the rats themselves, as detailed in the described storage facilities.
Moreover, Francesco Redi's experiment proved that maggots in meat come from fly larvae, discrediting the notion that they appear spontaneously or are inherent to meat regardless of its condition. Furthermore, smoking was a method used to preserve meat for longer periods, indicating that measures were taken to avoid spoilage and not conceal rotten meat. It is, however, true that ad hoc methods were used at times to make food appear fresh, such as adding dyes to vegetables or using fillers in bread.
Hence, the correct answer is Option 2) False.