| A USER'S GUIDE FOR REFRIGERATION |
|
| A User's Guide for Refrigeration : |
Refrigeration
equipment is designed to retard the natural process of deterioration.
At best, it can perserve food in the same condition as when
it was put in the refrigerator. For maximum storage life and
minimum risk : |
-
The appropriate refrigeration equipment should be selected
for temperature and humidity requirements of the food; |
- The correct
refrigerated temperature should be maintained for the food
stored; |
- Dairy products,
partly-cooked pastry, cooked meat and deliacatessen products
are particularly vulnerable to contamination from other products.
|
- To avoid
these risks, fresh unwrapped products should be kept in separate
refrigerators; |
- Food should
not be stored for long periods in a general-purpose refrigerator,
because a single temperature is not suitable for keeping all
tpyes of food safely and at peak condition; |
- Food stored
for a short period in a general-purpose refrigerator should
be enclosed in an airtight container of covered completely
in impermeable cling tpye film;
|
- Uncooked
meat, poultry of fish should never be kept in the same refrigerator
as any other food not in an airtight container; |
- Incorrect freezing
and re-freezing of thawed foods is dangerous; |
- Stock kept in
refrigerated storage should be rotated;
|
- The unused portion
of sliced or cut meat, cheese, etc, should be returned to
the refrigerator without delay;
|
- All spoilt food
should be destroyed immediately.
|
- Clean equipment
regularly inside and out. |
|
| Location
Refrigeration equipment should be located in a well-ventilated
position and away from : |
- Cookers,
ovens, radiators, boilers and other sources of intense heat; |
- windows
and skylights, where it may be affected by direct sunlight; |
- Barriers
to adequate air circulation. |
|
Loading
It is important that :
|
- There is enough
refrigeration capacity to store the maximum stock; |
- Perishable
goods are delivered in a refrigerated vehicle at the correcttemperature; |
- Food cabinets
are filled only with food at the predetermined storage temperature; |
- Hot or warm
food is never put in a refrigerator unless it is specifically
designed for rapid chilling / freezing; |
- Damage to
inner linings and insulation be avoided; |
- Airways within
the cabinet are never obstructed; |
- The risk of
cross-contamination is avoided when different foodstuffs are
stored in the same area. |
|
| Hygiene
In the interests of food hygiene : |
-
all refrigeration equipment should be cleaned thoroughly
and frequently inside and out; |
- blockages
should be cleared swiftly in drain lines, drip trays
and air ducts; |
-
evaporators should never be allowed to ice up and
cause fluctuations intemperature and humidity. |
|
| Recommended Products Temperatures : |
|
| Products |
Deg. C |
Deg. F |
Canned
and bottled drinks |
7 to 10 |
45 to 50 |
Fruit and vegetables |
5 to 8 |
41 to 46 |
Cooked pastry preparations |
3 to 5 |
37 to 41 |
Dairy products |
3 to 5 |
37 to 41 |
Cooked meat/delicatessen |
3 to 5 |
37 to 41 |
Bulk cream |
2 to 4 |
36 to 39 |
Fresh meat |
-1 to +1 |
30 to 34 |
Fresh poultry |
-1 to +1 |
30 to 34 |
Fresh fish |
-2 to 0 |
28 to 32 |
Pre-cooked food |
-21 to -18 |
-5 to 0 |
Ice cream |
-23 to -21 |
-10 to -5 |
|
|
|
| Check
operating temperature frequently in accordance with
current Food |
Hygiene
Regulations - and bear in mind that the air temperature
recorded on the cabinet should be lower than the product
temperature. |
|
| Cleaning For safe and efficient cleaning : |
- The power supply should be switched off; |
- All stock should be transferred to suitable alternative storage; |
- Interior
surfaces should be cleaned with lukewarm water and
a milddetergent; |
- Any
spilled food, wrappings, rubbish and dirt should be
removed; |
- Particular
attention should be paid to door handles and surrounding
areas; |
- All
surfaces should be thoroughly dried; |
- Any
external dirt or dust which might restrict air circulation
around the condenser should be cleared away; |
- The
power should be switched back on; |
- a check
should be made that the equipment reaches the correct
working temperature; |
- The
stock should be replaced as appropriate. |
|
| Defrosting Remember that : |
- Ice
on the evaporator or internal surfaces indicates the
need for defrosting; |
- Automatic
defrost will lead to a temporary rise in air temperature; |
- Certain
tpyes of equipment have to be defrosted manually; |
- Defrosting
regularly in accordance with the supplier's instructions
will lead to optimum performance; |
-
No instrument should be used which could perforate
cabinet linings or damage evaporators. |
- Airways
within the cabinet are never obstructed; |
|
| Performance
Monitoring : |
- A separate
temperature indicator is required for each item of
equipment; |
- Each
refrigerator should be labelled to show the correct
operating temperature and the tpye of food stored; |
- Temperatures
should be checked and recorded at regular intervals; |
- Cold
room and cabinet doors should be kept firmly closed; |
- Free
circulation of air around the condenser will minimise
electricity costs; |
- a door
screen or curtain will significantly reduce running
costs. |
|
| Regular
Servicing : |
Refrigeration equipment is complex and runs intermittently day and night protecting valuable and perishable goods. Regular maintenance is vital to reduce the risk of breakdown and to ensure optimum use of energy. In addition, it is the user's responsibility to ensure that appropriate steps are taken to detect and remedy refrigerant leaks.
I.T.C.- Group refrigeration specialists will be happy to be consulted on refrigerations problems to be consulted on refrigerations problems |