|
What is Ready-To- Eat Food? |
necessary permits to operate. The use of |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Any food product that does not |
foods prepared at home or in an unli- |
|
212° |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
need additional heat treatment or |
censed establishment is prohibited. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
washing is called ready-to-eat food. |
|
|
|
|
|
|
165° |
|
|
|
|
|
|
|
Extra care must be taken to ensure |
The Temperature Danger Zone? |
|
140° |
|
|
|
|
|
|
|
the safety of these foods. |
|
Most microorganisms that cause |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Where do we purchase foods? |
foodborne illness typically grow best |
|
|
|
DANGER |
|
|
|
|
|
|
|
|
|
|
|
ZONE |
|
|
|
|
|
between temperatures of 41°F and |
|
|
|
|
|
|
All foods must be purchased from |
|
|
|
|
|
|
|
|
|
|
|
140°F. This is commonly referred to |
|
|
|
|
|
|
|
|
|
|
|
approved sources. These are manu- |
|
|
|
41° |
|
|
|
|
|
|
|
as the temperature danger zone. One |
|
|
|
|
|
|
|
|
|
|
facturers and suppliers who comply |
|
32° |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
with all the rules and regulations that |
of the basic and simplest ways to keep |
|
|
|
|
Temperature |
|
|
|
|
food safe is by keeping it out of the |
|
|
|
|
Danger |
|
|
|
|
pertain to the production of their |
|
|
|
0° |
|
|
|
|
temperature danger zone. |
|
|
|
|
Zone |
|
|
|
|
product, including having the |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
How do we store potentially |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
hazardous foods? |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
All foods must be kept free from |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
adulteration, spoilage, filth or |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
other contamination in order to be |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
suitable for human consumption. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Potentially hazardous foods are of |
|
|
|
|
|
Thermocouple |
|
|
|
|
|
|
|
|
|
|
|
|
|
Bi-metallic |
|
|
|
|
|
|
|
|
Cold temperature |
|
particular concern because they |
|
|
|
|
|
|
|
|
|
|
|
|
|
Thermometer |
|
|
Thermometer |
|
|
|
|
|
|
reading calibration |
|
provide the conditions suitable for |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
the growth of microorganisms. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
These foods must be kept either hot or |
Also, it is available within the range |
in 50/50 solution of ice and water |
|
cold to prevent microorganisms from |
of 0° to 220°F making it ideal for |
or boiling water, and hitting the |
|
growing. Hot means 140°F or above |
measuring the required tempera- |
“reset” button will automatically |
|
and cold means 41°F or below. The |
tures in a food establishment. |
calibrate the thermometer. Bi-metallic |
|
temperature range between 41°F and |
|
Another thermometer in use is |
stem thermometers may be calibrated |
|
140°F is known as the temperature |
the thermocouple which is very accu- |
by two methods: |
|
danger zone. It is within this range |
rate but fairly expensive. Lastly, there is |
Boiling-Point Method |
|
that microorganisms are comfortable |
a thermometer called thermistor, |
Ice-Point method |
|
and will grow rapidly. At 41°F and |
which has a digital read out and is |
|
|
|
|
|
|
|
|
|
|
|
below, the temperature is cold |
commonly called "digital thermometer." |
Boiling-Point Method |
|
enough to retard or slow down the |
|
These thermometers are used by |
Bring water to a boil. |
|
growth of microorganisms, while |
inserting the probe into the thickest |
Place the thermometer probe (stem) |
|
above 140°F most of the microor- |
part or the geometric center of the |
into the boiling water. Make sure |
|
ganisms which cause foodborne ill- |
food item being measured. The stem |
that the thermometer probe does |
|
ness begin to die. |
thermometer must remain in the food |
not touch the bottom or sides of |
|
|
|
until the indicator stops moving before |
the pan. Wait until the indicator |
|
Thermometers |
stops moving, then record the |
|
the reading is taken and must be re- |
|
|
|
|
The only safe way to determine |
temperature. |
|
calibrated periodically to assure accuracy. |
|
that potentially hazardous foods are |
If the temperature is 212°F, do |
|
|
|
|
|
|
|
kept out of the temperature danger |
|
|
|
|
|
|
Calibration |
|
|
nothing, the thermometer is accurate. |
|
|
|
|
|
|
|
|
|
zone is by the use of thermometers. |
|
Thermometers must be calibrated |
(This is the temperature of boiling |
|
There are several different types of |
to ensure their accuracy. For thermo- |
water at sea level.) |
|
thermometers. The bi-metallic stem is |
couple thermometers, follow the |
If the temperature is not 212°F, |
|
the most popular type. It is fairly |
instructions provided by the manu- |
rotate the hex-adjusting nut using |
|
inexpensive, easy to use, accurate to |
facturer. For some thermistor ther- |
a wrench or other tool until the |
|
+ or – 2°F and easy to re-calibrate. |
mometers, placing the thermometer |
indicator is at 212°F. |