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This module on control of food hazards is part of the Food Safety Knowledge Network's Basic Level resources for food manufacturers. This module was authored by Kevin Swoffer.

Welcome

Welcome to Introduction to Control of Food Hazards: General and Specific .

This learning module is part of the Food Safety Knowledge Network Basic Level Program.

The Basic Level and Intermediate Level Programs were developed through a partnership between the Global Food Safety Initiative and Michigan State University to enhance the technical knowledge of individuals responsible for food safety, especially those working for small or less-developed businesses.

To learn more about the Food Safety Knowledge Network, please visit www.foodsafetyknowledgenetwork.org .

Module overview

You need comprehensive knowledge to control food hazards within your company. Lack of the control of hazards can cause contamination resulting in risks to consumer health or loss of product leading to significant financial loss. Food hazards can be biological, chemical, or physical in nature. As a food safety manager, you should be aware of the significance of hazards and must identify and monitor hazards within your production process.

This module covers the requirements for effective general and specific controls to prevent food hazards.

The following topics will be discussed:

  • system development
  • biological hazards
  • chemical hazards
  • physical hazards
  • control of food safety hazards.

Module objectives

Upon completion of this module you should be able to

  • describe the principles and reasons for controlling food hazards
  • explain the nature of food safety hazards (biological, chemical, physical, and allergens) and factors influencing the likelihood of their occurrence (such as, conditions which influence food safety hazards commonly associated with specific ingredients used, specific processes undertaken, and specific foods produced as well as customer requirements and legislation)
  • explain the recognized and known control measures and how to apply these to control hazards relevant to specific products, taking into consideration local regulatory compliance and customer requirements
  • design the monitoring procedures necessary to ensure control of food safety hazards relevant to the product
  • perform corrective actions when control measures are not achieved
  • operate a system for maintaining comprehensive records in relation to the control of identified hazards.

System development

As the person responsible for food safety within the factory it is important to develop a system to ensure and monitor that the staff is fully aware of and uses

  • good biological hazard prevention practices
  • good chemical hazard prevention practices
  • good physical hazard prevention practices
  • risk analysis processes to identify all possible hazards.

Any system will have to be clearly and concisely documented and communicated effectively to appropriate staff within the company.

It is important to work closely with key company staff to ensure that they clearly understand the importance of such systems and the ways they can influence effective compliance.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, Food safety knowledge network basic level requirements. OpenStax CNX. Dec 30, 2009 Download for free at http://cnx.org/content/col11142/1.4
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