How to use an infrared thermometer, an infrared thermometer, sometimes called a laser thermometer, is a useful tool during a commercial kitchen, allowing you to quickly and accurately determine surface temperatures from a distance.
This can be handy for checking griddle surface temperatures or verifying when an open deck oven is prepared to bake. Infrared temperature guns also are an excellent choice for frozen foods, which may be impossible to penetrate with probes.
Because there is no contact with the food products, it’s not necessary to clean and sanitize the thermometer between uses, though the handle should be cleaned if used by a cook who just handled potential cross-contamination sources.
The ease of use makes this type of thermometer ideal for most food safety checks. In order to urge an accurate reading, it’s important to use an infrared thermometer properly.
How Do Infrared Thermometers Work?
To understand why infrared thermometers got to be used differently than others, it is vital to know how they work. Infrared energy is a type of thermal radiation the thermometer can read from a distance.
However, the thermometer’s ability to do so can be limited based on the emissivity of the object.
Emissivity is how well the surface of an object radiates infrared energy. Organic materials, such as meat and plant byproducts, are rated at 0.95 emissivity, while shiny surfaces usually have much lower ratings since they reflect so much of the energy directed at them.
To address that issue, you can apply a thin layer of oil, an organic material, to any metal surface you need to measure by infrared thermometer before you bring it up to temperature.
However, some models will allow you to adjust the emissivity rating to get a more accurate reading from non-organic materials.
Why Use Infrared Thermometers?
Take measurements from a distance
Infrared thermometers are ideal for taking temperatures that require to be tested from a distance. They provide accurate temperatures without ever having to touch the thing you’re measuring (and albeit your subject is in motion).
This is ideal once you can’t insert a search into the item being measured, if the surface is out of reach, or if you’ve got to stay your distance because of high heat. You might use an infrared thermometer to live objects that are:
Fragile (computer circuitry)
Dangerous (gears, molten metal)
Impenetrable (frozen foods) Susceptible to contamination (foods, saline solution)
Moving (conveyor belt, living organisms)
Out of reach (air conditioning ducts, ear drums)
Infrared Thermometers Measure Surface Temperature
Infrared thermometers are great for checking surface temperature; however, they are doing not measure the interior temperature of an object.
Infrared thermometers are in no time, typically giving a reading during a fraction of a second, or the time it takes for the thermometer’s processor to perform its calculations.
Their speed and relative ease of use have made infrared thermometers invaluable public safety tools in the food service industry, manufacturing, HVAC, asphalt & concrete, labs and countless other industrial applications.
Limitations of Infrared Thermometers
Infrared thermometers can be very useful when used in the right way and put to task in the right applications. However, before you can develop confidence in their ability to give fast temperatures, you need to understand their limitations.
Using an Infrared Thermometer
The most important thing to understand about using this sort of thermometer is its best uses. It is ideal for checking the surface temperatures of griddles, pans, and deck ovens.
It can check the surface temperatures of refrigerated or frozen items, but only for items that are fully chilled; it cannot determine that the center of the products have chilled to safe temperatures.
It can provide a quick and easy way to check the temperatures of items displayed on buffets, but only after the products have been mixed to ensure temperatures are fairly uniform throughout the pans.
It should not be used for solid items like steak or chicken, as the internal temperatures of such foods can vary greatly from the surface temperatures.
Here are some additional tips to help you get the most out of your infrared thermometer
• Do not look directly into the beam – the laser can cause permanent eye damage.
• Stir all liquid and soft foods before measuring temperatures.
• Sudden ambient temperature changes can make it difficult for the thermometer to get an accurate reading. If you would like to record temperatures during a walk-in cooler, place the thermometer within the cooler 20 minutes before you begin taking measurements to make sure more-accurate results.
• Remove all covers, such as glass doors and plastic film, before taking the temperature of a product. There should be no barriers between the thermometer and the product.
• Regularly clean the thermometer, especially the lens, to ensure accurate readings.
• When checking the temperature of a griddle or pan, add oil to the surface and allow it to come to temperature before taking a reading.
Frequently Asked Questions (FAQs) About How to use Infrared Thermometer
Can you use infrared thermometer on humans?
To measure human temperature, you ought to only use infrared thermometers that are FDA-approved. Being FDA-approved means the device has been tested and approved to make sure that it’s safe to use on both infants and adults. You can inspect one among the simplest non-contact infrared thermometers by ANU here.
What is normal body temperature with infrared thermometer?
NCITs could also be wont to reduce cross-contamination risk and minimize the danger of spreading disease. While typically 98.6°F (37.0°C) is taken into account a “normal” temperature, some studies have shown that “normal” blood heat are often within a good range, from 97°F (36.1°C) to 99°F (37.2°C).
Can I take my temperature with an infrared thermometer?
Can an infrared thermometer measure the temperature of an object? Yes, most of the infrared thermometers are often used for monitoring the temperature of both bodies and objects. With a one-touch button, you’ll adjust the settings to urge accurate readings whenever you’re measuring the temperature.
How do I use an infrared thermometer on my forehead?
Aim the probe of the thermometer at the center of the forehead and maintain a distance of less than 1.18in(3cm) away (the ideal distance will be the width of an adult finger). Do not touch the forehead directly. Gently press the measurement button to start measuring.