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Since the responsibility for food safety rests with you, direct verification of systems is extremely important for Basic Level requirements, and you should personally systematically monitor activities on a regular basis and record your findings.

The importance of water quality

The contamination of water can cause serious illnesses to consumers. Water contamination is a major source of gastrointestinal illnesses, which can be fatal to vulnerable people.

Pathogenic microorganisms in contaminated water can potentially contaminate foods when used in ingredients, ice, or steam and when there is contact with food.

Chemicals in water can also be a public health concern. It is common in some parts of the world where ground water used in food production may contain arsenic and other compounds which, when consumed by humans, can be very dangerous.

Countries or regions typically have legislative requirements for water quality. As the food safety manager, you should refer to the local regulations on using non-potable water in food product processes since they differ from place to place.

The World Health Organisation has established guidelines for drinking water guidance in the Codex Alimentarius. These may be adopted as a national standard, but such may not always be the case.

These requirements and regulations are in place to reduce the risk of water contamination and should protect public health if all businesses follow them correctly.

Codex requirements

The Codex provides the following requirements for the use of water in your facility:

  • Facilities
  • Water in contact with food
  • Water as an ingredient
  • Water used to make ice and steam


The Codex requirements state that an adequate supply of potable water with appropriate facilities for its storage, distribution, and temperature control, should be available whenever necessary to ensure the safety and suitability of food.

To find correct guidance for drinking water, you should study the World Health Organisation’s Guidelines for Drinking Water Quality .

Non-potable water is regularly used in facilities for fire control, steam production, refrigeration, and other similar purposes where the quality of the water does not matter. Non-potable water must be indentified in your facility and must have a separate system from potable systems.

Water in contact with food

Only potable water should be used if the water is going to be in contact with the food product. There are, however, a few exceptions when this rule does not apply:

  • for steam production, fire control, and other similar purposes not connected with food
  • in certain food processes, chilling, and in food handling areas, provided this does not constitute a hazard to the safety and suitability of food (for example, the use of clean sea water).

Water that is re-circulated for reuse should be treated and maintained in such a condition that no risk to the safety and suitability of food can result. You must monitor the treatment processes effectively to make sure that you have them under control.

Questions & Answers

how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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