food safety 101 foodborne illness: awareness and prevention level one certification course area 2...
TRANSCRIPT
Food Safety 101 Foodborne Illness: Awareness and Prevention
Level One Certification CourseArea 2
Kentucky Department of Education Division of School and Community
Nutrition
At the end of this presentation, you will be able to: Recognize harmful bacteria and viruses; Understand the Danger Zone; Utilize proper techniques to avoid cross
contamination; Utilize proper cooking temperatures for
cooling, thawing, reheating and holding times and date marking.
Objectives
Who is the most vulnerable to foodborne illness? Young children (infants and school-aged) Older adults (elderly) Individuals with compromised immune
systems (pregnant, sick, etc.)
Foodborne Illness
Causes of Foodborne Illness:Let’s look at bacteria The types of bacteria are:
Beneficial bacteria Beneficial bacteria lives in our environment and in our
bodies, helping us with digestion, vitamin production and helping to prevent the growth of harmful bacteria.
Spoilage Bacteria There are bacteria that live and grow in food that can
cause damage to the flavor, appearance, texture or composition of food.
Pathogens These are the bacteria that produce disease in the
human body. These bacteria are our main concern, as they are responsible for foodborne illness.
Foodborne Illness
Causes of Foodborne Illness:Let’s look at Viruses A virus is much smaller than a bacteria and
must live inside a living cell in order to survive and reproduce. It takes very few cells infected with a virus to make a person sick.
Personal hygiene, especially washing your hands frequently, are important in preventing foodborne illness caused by viruses.
Foodborne Illness
There are two viruses that are of major concern in food service:Norovirus:
- Causes nausea, stomach aches, vomiting and diarrhea. - Causes more foodborne illness than all other causes of
foodborne illnesses combined. - To prevent the spread of norovirus, you should:
- not come to work while sick, - wash your hands frequently (especially
after using the bathroom) - avoid eating raw shellfish. Hepatitis A - Causes a serious infection of the liver. - Hand-washing is the most significant way you can prevent the spread of this foodborne illness.
Foodborne Illness
Now let’s look at:Potentially Hazardous Foods (PHF), What are they?
Bacteria grows rapidly in environments that are:
Moist; Have low acidity levels; or In/on meat, dairy, eggs, cooked
vegetables, rice and pasta.
Potentially Hazardous Foods
Food Storage: Preventing Foods from Becoming Unsafe
Storage: Separate raw meats, poultry,
seafood and eggs from other foods. These foods should be stored on
lower shelves, while cooked and ready-to-eat foods should be stored on higher shelves.
This is so there is no opportunity for juices from raw foods to drip and contaminate prepared foods.
Recommended Temperatures: Produce: 45° F or below Dairy and Meat: 40° F or below Seafood: 30° F or below
Potentially Hazardous Foods
Don’t forget produce!
- Remember that bacteria and viruses can be or grow on the outside of fresh produce. - Since we eat a lot of our produce raw, it is important to wash all fruits and vegetables thoroughly to prevent contamination that can lead to illness.
- Even though we do not eat the skin on some fruits, when we slice into hard skin, the knife can carry contaminants from the outer skin into the flesh of the fruit or vegetable that we will be eating.
Potentially Hazardous Foods
More produce safetyFor soft-skinned fruits and vegetables:- Rinse under running water or with a
fresh produce rinse product.
For firm-skinned fruits and vegetables:- Rub under running tap water or with a
fresh produce rinse product with your hands, or scrub with a clean vegetable brush.
Potentially Hazardous Foods
What is Cross-Contamination? Cross contamination is the transfer of
harmful bacteria from one food via means of utensils, equipment or human hands to another food. It also can occur when a raw food touches or drips onto a cooked or ready-to-eat food.
Cross-Contamination
Preventing Cross-Contamination
Wash, rinse and sanitize cutting boards, knives, utensils and countertops after contact with raw meat.
Store raw meat below and away from all ready-to-eat foods.
Wash, rinse and sanitize food- contact equipment (slicers, knives, cutting boards) at least every 4 hours.
Wash hands before handling food and after touching raw meat.
Cross-Contamination
Foreign material can make food unsafe. Foreign materials are any objects in food
that are not foods themselves. Foreign material contamination can cause the person who eats the contaminated food to become sick, poisoned, choke or cause damage to their digestive track.
Cross-Contamination
Preventing Foreign Material Contamination Vigilance is the only way to prevent
foreign material contamination. Store chemicals away from foods. Frequently inspect utensils and
equipment for damage. Discard foods that you believe to be
contaminated.
Cross-Contamination
The Danger Zone: Time and Temperature Abuse Time and temperature abuse is one of
the most common ways food becomes infested with bacteria.
The longer a food spends (time) in the Danger Zone (temperature) the higher the risk of foodborne illness.
Danger Zone
Avoiding the Danger Zone:How do I store raw foods? Produce: 45° F or below Dairy and Meat: 40° F or below Seafood: 30° F or below
Danger Zone
Avoiding the Danger Zone:How do I thaw frozen foods?
Frozen foods should be thawed in one of the following ways:- In the refrigerator, on a tray.- Under cool running water.- During the cooking process.- In a microwave oven (if food is to be
cooked immediately after thawing).
Danger Zone
Avoiding the Danger Zone:How do I know if a food is done? We use high temperatures to kill
bacteria, viruses and other microorganisms found on and in raw meat, poultry, eggs and seafood.
It is important to measure the temperatures of the following foods with a calibrated food thermometer.
Danger Zone
Avoiding the Danger Zone:How do I hold for service? Cold foods should be held below 40° F. Examples of
cold service foods include salad and yogurt bars.* Hot foods should be held above 140° F. Examples of
hot foods include cooked rice, vegetables and meats.* Temperatures for both hot and cold foods should be
checked at scheduled intervals and recorded.
If the food being held is in the Danger Zone, it should be discarded.
*Be sure to check your district policy for holding temperatures.
Danger Zone
Avoiding the Danger Zone:How do I cool food for storage? Cooked foods should be rapidly chilled so they
spend as little time as possible in the Danger Zone.
The Kentucky Food Code requires that potentially hazardous foods are chilled to at least 45° F within 4 hours.
Ideally, hot foods should be cooled from 135° F to 70° F within 2 hours and cooled from 70° F to 40° F or less within 4 hours.
Room temperature foods should also be cooled to 40° F or less within 4 hours.
Danger Zone
Avoiding the Danger Zone:How do I cool foods?Acceptable Cooling Methods- Separate into smaller portions.- Place food in shallow pans.- Use containers that facilitate heat transfer.- Stir food in container that has been placed in
an ice-water bath.- Arrange a refrigerator for maximum heat
transfer. - Use rapid cooling equipment.- Add ice as an ingredient.
Danger Zone
Avoiding the Danger Zone:How do I reheat foods? Foods should be reheated quickly to
165° F before serving. Reheating to 165° F will kill bacteria which may have multiplied while food was being cooled.
Food that is reheated in the microwave should be allowed to stand for 2 minutes after heating to 165° F to ensure that food is heated throughout.
Danger Zone
Avoiding the Danger Zone:Always keep a record! In order to ensure foods do not stay in
the Danger Zone for too long, it is important to keep records.
Mark containers with a maximum 4 hour time period in the Danger Zone at the time they are removed from a controlled temperature environment so the food can be discarded if it spends too much time in the Danger Zone.
Danger Zone
Let’s look at Date Marking Date marking ensures that food is either
used or discarded before it spoils. It is an important step in reducing risk of
foodborne illnesses.
Date Marking
Date Marking cont. Refrigerated, ready-to-eat, and
potentially hazardous foods shall be marked with a “Consume By Date”: At time of preparation, if prepared on the
premises and held for over 24 hours.OR At the time the container is opened, if
obtained from a commercial vendor.
Date Marking
If subsequently frozen: When the food is thawed, mark that it
shall be consumed within 24 hours. Mark at the time of freezing how many
days it has already been held at refrigeration. Upon thawing, subtract these days from the new “consume by date”.
Date Marking
Discard food if: The “consume by date” has expired. The food is not consumed within 24
hours of thawing. The food is not date marked or
marked appropriately.
Date Marking
Lessons learned… Now we can recognize harmful bacteria
and viruses; Understand the Danger Zone; Utilize proper techniques to avoid cross
contamination; and Utilize proper cooking temperatures for
cooling, thawing, reheating and holding times and date marking.
Objectives