Can an ordinary thermometer be used to measure the temperature of food?

No, I don't know if you're talking about a thermometer to measure body temperature, if there is mercury in it, mercury is poisonous, and if the thermometer is broken, the food can't be used.

There is a dedicated, plug-in digital thermometer, which is available on the market and can be bought.

It can be measured using a food center thermometer, and when using a food center thermometer to measure the temperature of a food product, the correct method is as follows:

1. Observe the range first, the value of the index and 0 points, and the measured food temperature can not exceed the range.

2. The glass bubble of the thermometer is fully immersed in the food on the side of the container, and do not touch the bottom of the container or the wall of the container.

3. After the glass bubble of the thermometer is immersed in the food to be measured, wait for a while, and let Peichan read it again after the thermometer is stable.

4. When reading, the glass bubble of the thermometer should continue to leave dust in the food, and the line of sight should be level with the upper surface of the liquid column in the thermometer.

Note: Do not shake before taking temperature.

1. The function of food Qingzhi mill thermometer: it has multi-function, low consumption, high stability and high accuracy, and is the first simple and practical high temperature detection thermometer. Stainless steel probe, straight measurement, easy to carry.

It has a wide measurement range and is suitable for household, refrigeration, heating, food processing, rubber and plastic processing and other fields.

2. Uses: Temperature measurement of food, liquid, granular finch body, temperature switching display and measurement temperature holding function.

1. The function of the first food thermometer: it has multi-function, low consumption, high stability and high accuracy, and is a simple and practical high temperature detection thermometer. No rusty steel probe, straight measurement, easy to carry.

It has a wide measurement range and is suitable for many fields such as household, refrigeration, branch grinding, food processing, rubber and plastic processing.

2. Usage: temperature measurement of food, liquid, granular objects, temperature switching display and measurement temperature holding function.

The glass bubble of the thermometer is fully immersed in the liquid to be measured, and does not touch the bottom or wall of the container; After the thermometer glass bubble is immersed in the measured liquid, wait for a while, and then read it after the thermometer indicator is stable; The glass bubble of the thermometer should remain in the liquid during reading, and the line of sight should be level with the upper surface of the liquid pillar in the thermometer.

When measuring the surface temperature of a luminous object, such as aluminum and stainless steel, the reflection of the surface can affect the infrared thermometer reading. Before reading the temperature, a strip can be placed on the metal surface, and after the temperature is balanced, the temperature of the strip area is measured.

In order for an infrared thermometer to provide accurate temperature measurement from the kitchen to the refrigerated area, it is necessary to wait for a period of time in the new environment to reach temperature equilibrium. It is best to place the thermometer in a place where it is used frequently.

An infrared thermometer is used to read the internal temperature of a fluid food, like a soup or sauce, which must be stirred and then the surface temperature can be measured. Keep the thermometer away from steam to avoid contaminating the lens, resulting in incorrect readings.

With a thermocouple probe, insert it into the inside of the food for measurement.

Categories: Education Science.

Analysis: People often judge the degree of heat and cold of an object based on their own feelings, but such judgments are usually inaccurate due to the clarity of many factors. To know exactly the temperature of an object, you need to use a thermometer.

The first to invent the thermometer was the Italian scientist Galileo Galilei. Galileo designed a glass tube with a spherical end and an air filling center, with the other end open facing down in the liquid. When the temperature rises, the air inside the tube expands by heat.

Under the same conditions, the thermal expansion of the liquid is not as large as that of the gas, so the height of the liquid level in the tube will be reduced. In the same way, when the temperature decreases, the liquid level in the tube will rise, but such a thermometer is not very accurate due to the influence of atmospheric pressure changes.

The thermometer we use now is completely made by using the principle of thermal expansion and cold contraction of liquid: because under the same conditions, the thermal expansion of liquid is greater than that of solid, so when the temperature changes, the liquid level in the glass tube will rise or fall; And because the inner diameter of the glass tube of the thermometer is very thin, the change in the volume of the liquid shows a more obvious height change in the tube, so the specific value of temperature can be read from the scale on the glass tube. The liquids in the thermometer are generally mercury, kerosene, and alcohol.