Answer to Question 1
The 4 Cs of food safety include cleaning, combating cross-contamination, cooking, and chilling, and can help reduce your risk for foodborne illness. Anything that comes in contact with your foods, including your hands, should be washed thoroughly. You should always wash produce before eating it, and separate raw meats, poultry, and fish, plus any utensils that touch them, from ready-to-eat foods to prevent cross-contamination. Using a food thermometer is the only accurate way to tell if your cooked food is safe to eat. Perishables should be chilled properly and promptly to minimize the growth of bacteria.
Answer to Question 2
Cross-contamination could occur, which means that microbes might move back and forth between several surfaces or items.