NS205 – Food Safety & Microbiology

1. NS205 – Food Safety & Microbiology Seminar 4 – Refrigeration & Food Safety

2. Getting to Know You !!! • Let’s spend a few minutes getting to know on another a little bit better at the beginning of each seminar • Those of you who have birthdays in May and June – tell us one unique thing about yourself

3. Reminder – • Any questions about Unit 4?

4. Why is Refrigeration Important? • It extends the shelf life of food • Slows bacteria growth

5. Two Types of Bacteria in Refrigerated Foods Pathogenic Bacteria • Causes foodborne illnesses • Does not generally affect the taste, smell, or appearance of a food • Generally, one cannot tell that a pathogen is present • Grow rapidly in the “temperature danger zone” Spoilage Bacteria • Causes foods to deteriorate and develop unpleasant odors, tastes, and textures • Can grow at low temperatures, such as in the refrigerator • Most people would not choose to eat spoiled food, but if they did, they probably would not get sick

6. Refrigerator Temperature • Setting must keep the internal temperature of food at 41degrees F • Check the temperature at least once during each shift – log the temperature •  Always make sure the doors are closed tightly

7. Refrigerator Shelving • Open shelving is the best option • Lined shelving restricts airflow

8. Do Not Overload Refrigerators • Storing too many products prevents good airflow • This makes the unit work harder to stay cold

9. Meats • Store raw meat, poultry and seafood on the bottom shelfof the refrigerator so juices don’t drip onto other foods.

10. Dairy Products • Refrigerate dairy foods promptly. Discard dairy foods left at room temperature for more than two hours – even if they look and smell good.

11. Fruits & Vegetables • Cover and refrigerate cut/peeled fruits and vegetables. • TOSS cut/peeled fresh produce if left at room temperature longer than TWO hours. • Keep fruits and vegetables separate from raw meat, poultry and seafood while shopping, preparingor storing them.

12. Let’s Play – Save or Throw It Out!

13. Should you Save or Throw It Out … Pizza left on the counter overnight?

14. Throw it out !! Even if you reheat pizza left on the counter overnight, some bacteria can form a heat resistant toxin that cooking won’t destroy.

15. Should you Save or Throw it out … Perishable food left out from the noon meal until the evening meal?

16. Throw it out ! Perishable foods – such as meats, gravy and cooked vegetables – should be refrigerated within TWO hours.

17. Should you Save or Throw it out … Cut/peeled fruits and vegetables at room temperature for over TWO hours?

18. Throw it out ! Once you have cut through the protective skin of fruits and vegetables, bacteria can enter. Refrigerate cut or peeled fruits and vegetables within TWO hours.

19. Should you Save or Throw it out … A FULLpot of chicken soup stored in the refrigerator while still hot?

20. Throw it out ! It can take up to 24 hours for an 8-inch stock pot of steaming chicken soup to cool to a safe temperature in your refrigerator! Transfer hot foods to shallow containers to speed cooling.

21. Should you Save or Throw it out … Hamburger thawed on the kitchen counter?

22. Throw it out ! • Bacteria may have formed heat-resistant toxins. • The best way to thaw perishable foods is in the refrigerator. • Thaw packages of meat, poultry and seafood on a plate on the bottom shelf of the refrigerator to prevent their juices from dripping on other foods.

23. Should you Save or Throw it out … Pumpkin pie stored at room temperature overnight?

24. Throw it out! • Foods with eggs, milk, and a high moisture content – such as pumpkin pie – must be refrigerated. • Avoid keeping pumpkin pie at room temperature more than TWO hours, including time after baking AND before being served. • Some commercial pumpkin pies –purchased at room temperature – must later be refrigerated. Check label for storage requirements and don’t buy them if label directions are unclear or missing.

25. Should you Save or Throw it out … Leftovers in the refrigerator forover a week?

26. Throw it out ! • Refrigerated leftovers may become unsafe within 3 to 4 days. • You can’t always see or smell if a food is unsafe. It may be unsafe to taste a food.

27. Should you Save or Throw it out … A turkey in your freezer for five years?

28. Throw it out ! Food kept frozen at 0 degrees F is still safe to eat. However, it may not taste as good. To assure best flavor, eat a frozen turkey within a year.

29. When in doubt – Throw it out!