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food safety
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8-1
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Learning Objectives
Identify proper methods for thawing food. Identify the minimum internal cooking times and
temperatures for potentially hazardous food. Identify the proper procedure for cooking potentially
hazardous food in a microwave. Identify methods and time and temperature requirements
for cooling cooked food. Identify time and temperature requirements for reheating
cooked, potentially hazardous food. Identify methods for preventing contamination and time
and temperature abuse when preparing food. Recognize the importance of informing consumers of
risks when serving raw or undercooked food.
At the end of the chapter the participants must be able to:
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Thawing Food
The Four Acceptable Methods for Thawing Food
In a refrigerator, at 41F (5C) or lower
Submerged under running potable water, at a temperature of 70F (21C) or lower
In a microwave oven, if the food will be cooked immediately after thawing
As part of the cooking process
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When preparing salads containing potentially hazardous ingredients:
Make sure leftover ingredients (i.e., pasta, chicken, potatoes) have been handled safely by ensuring they were:
Cooked, held, and cooled properly
Stored for less than 7 days
Prepare product in small batches
Refrigerate ingredients until the point they are needed
Chill all ingredients and utensils prior to using them
Preparing Specific Food: Salads Containing PHF’s
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When preparing eggs and egg mixtures:
Handle pooled eggs (if allowed) with care:
Cook promptly after mixing or store at 41°F (5°C) or lower
Clean and sanitize containers between batches
Use pasteurized shell eggs or egg products when preparing dishes requiring little or no cooking (i.e., hollandaise sauce)
Promptly clean and sanitize equipment and utensils used to prepare eggs
Preparing Specific Food: Eggs and Egg Mixtures
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Preparing Specific Food: Eggs and Egg Mixtures
When preparing eggs for high risk populations:
Pasteurized eggs or egg products must be used when dishes will be served raw or undercooked
Unpasteurized shell eggs may be used if the dish will be cooked all the way through (i.e., omelets, cakes)
If shell eggs will be pooled for a recipe they must be pasteurized
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Preparing Specific Food: Produce
When preparing produce: Wash it thoroughly under running water before
cutting, cooking, or combining with other ingredients
Use water slightly warmer than the temperature of the produce
Pull leafy greens apart and rinse thoroughly
Clean and sanitize surfaces used to prepare produce
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Preparing Specific Food: Produce
When preparing produce: continued
Prevent contact with surfaces exposed to raw meat or poultry
Prepare produce away from raw meat, poultry, eggs, and cooked and ready-to-eat food
Clean and sanitize the workspace and all utensils used during preparation
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Preparing Specific Food: Produce
When preparing produce: continued
When soaking or storing produce in standing water or an ice water slurry, do not mix:
Different items
Multiple batches of the same item
Refrigerate and hold cut melons at 41°F (5°C) or lower
Do not add sulfites
Do not serve raw seed sprouts to high risk populations
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Preparing Specific Food: Fresh Juice
To package fresh juice for later sale: A variance is required from the regulatory agency
The juice must be treated (e.g., pasteurized) according to an approved HACCP plan
As an alternative, the juice must contain a warning label indicating the product has not been pasteurized and may contain harmful bacteria.
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Cooking Food
When cooking potentially hazardous food, the internal portion must:
Reach the required minimum internal temperature Hold that temperature for a specific amount of time
Cooking Poultry: (including whole or ground chicken, turkey, and duck)Minimum Internal Cooking Temperature:165°F (74°C) for 15 seconds
Cooking Stuffing: Stuffing made with potentially hazardous ingredients; Stuffed meat, fish, poultry, and pastaMinimum Internal Cooking Temperature:165°F (74°C) for 15 seconds
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Cooking Dishes with Potentially Hazardous Ingredients
When including previously cooked, potentially hazardous ingredients in the dish:
Cook ingredients to a minimuminternal temperature of:
165°F (74°C) for 15 seconds
When including raw potentially hazardous ingredients in the dish:
Cook raw ingredients to their required minimum internal temperature
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Cooking Potentially Hazardous Food in a Microwave
Potentially hazardous food cooked in a microwave: (eggs, poultry, fish, and meat)
Minimum Internal Cooking Temperature:165°F (74°C)
When cooking food in a microwave: Cover it to prevent the surface from drying out Rotate or stir it halfway through the cooking process to
distribute the heat more evenly Let it stand for at least 2 minutes after cooking to let the
product temperature equalize Check the temperature in several places to ensure that it
is cooked through
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Cooking Ground and Injected Meat
Ground Meat (including beef, pork, other meat)Minimum Internal Cooking Temperature:155°F (68°C) for 15 seconds
Injected Meat (including brined ham and flavor-injected roasts)Minimum Internal Cooking Temperature:155°F (68°C) for 15 seconds
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Cooking Pork, Beef, Veal, Lamb and Fish
Pork, Beef, Veal, LambMinimum Internal Cooking Temperature:Steaks/Chops: 145°F (63°C) for 15 secondsRoasts: 145°F (63°C) for 4 minutes
Fish Minimum Internal Cooking Temperature:145°F (63°C) for 15 secondsGround, chopped, minced fish Minimum Internal Cooking Temperature:155°F (68°C) for 15 seconds
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Cooking Eggs, Fruit or Vegetables
Eggs for immediate service Minimum Internal Cooking Temperature:
145°F (63°C) for 15 seconds
Eggs that will be hot-held Minimum Internal Cooking Temperature:
155°F (68°C) for 15 seconds
Fruit or vegetables that will be hot-held for service
Minimum Internal Cooking Temperature:
135°F (57°C)
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Cooking Commercially Processed, Ready-to-Eat Food
Commercially processed, ready-to-eat food that will be hot-held for service (cheese sticks, fried vegetables, chicken wings, etc.)
Minimum Internal Cooking Temperature:
135°F (57°C) for 15 seconds
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Cooling Food: Requirements and Prior to Cooling
Cool potentially hazardous food from: 135°F to 70°F (57°C to 21°C) within 2 hours
And then from 70°F to 41°F (21°C to 5°C) or lower in the next 4
hours
Before cooling food, start by reducing its size: Cut larger items into smaller pieces Divide large containers of food into smaller containers
or shallow pans
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Cooling Food: Methods for Cooling Food
Safe methods for cooling food: Place it in an ice-water bath
Place containers into a sink or large pot filled with ice water
Stir the food frequently
Stir it with an ice paddle Food cools faster when placed in an ice-water
bath and stirred with an ice paddle
Place it in a blast chiller Blast chillers blast cold air across food at high
speeds to remove heat They are useful for cooling large items
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Cooling Food: Methods for Cooling Food
Safe methods for cooling food: continued Place it in a tumble chiller
Tumble chillers tumble bags of hot food in cold water They are useful for cooling thick food
Add ice or cold water as an ingredient The recipe is prepared with less water than required Cold water or ice is then added later to cool the product
and provide the remaining water
Use a steam-jacketed kettle (if properly equipped) Run cold water through the jacket to cool the food
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Reheating Potentially Hazardous Food
Food reheated for immediate service:
Can be served at any temperature if it was properly cooked and cooled
Potentially hazardous food reheated for hot holding:
Must be reheated to an internal temperature of 165°F (74°C) for 15 seconds within 2 hours
Discard it if it has not reached this temperature within 2 hours
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Apply Your Knowledge: Test Your Food Safety Knowledge
1. True or False: Ground beef should be cooked to a minimum internal temperature of 140°F (60°C) for fifteen seconds
2. True or False: Fish cooked in a microwave must be heated to a minimum internal temperature of 145°F (63°C)
3. True or False: Potentially hazardous food must be cooled from 135°F to 70°F (57°C to 21°C) within four hours and from 70°F to 41°F (21°C to 5°C) or lower within the next two hours
4. True or False: If potentially hazardous food is reheated for hot holding, the internal temperature must reach 155°F (68°C) for fifteen seconds within two hours
5. True or False: It is acceptable to thaw a beef roast at room temperature
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What is the minimum internal cooking temperature for each of these items?
1. Salmon steak 2. Green beans that will be hot held 3. Ground pork 4. Lamb chops 5. Eggs for immediate service 6. Duck 7. Precooked frozen hot wings 8. Steak 9. Chicken enchiladas prepared with previously cooked chicken10. Pork loin injected with marinade
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Apply Your Knowledge: What’s the Temperature?