JP2000279152A - Roasting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roasting apparatus capable of accurately detecting the temperature of coffee beans and stably holding the sensitivity of a temperature sensor. SOLUTION: In a roasting apparatus 2 which manages a roasting treatment by controlling the temperature in a roasting vessel 21, the installing position of a temperature sensor 7 is specified in an exhaust passage (h) capable of indirectly detecting the temperature of coffee beans. Thus, the temperature of the coffee beans can be accurately detected. In addition, by putting the temperature sensor 7 on the back side of a wall forming the exhaust passage (h), deterioration in sensitivity caused by fouling is inhibited for a long time, thus, the sensitivity of the temperature sensor 7 is stably kept and the roasting is carried out in a suitable state, e.g. the heating of the coffee beans are suitably carried out with sufficient heating neither too much nor too little and so on.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roasting apparatus for roasting raw or semi-green coffee beans with hot air.

[0002]

2. Description of the Related Art As a conventional roasting apparatus, for example, coffee beans are put in a roasting container rotatably supported in a posture inclined with respect to a horizontal line, and the roasting container is rotated in one direction while rotating the roasting container in one direction. There is a type in which coffee beans are roasted by supplying hot air from a mesh provided on one axial end surface of a roasting container.

[0003] Conventionally, in the roasting process, the target finish time is set longer or shorter according to the amount of coffee beans to be put into the roasting container, and when the time-out of the timer is detected, the roasting process is terminated. I have.

[0004]

In the above conventional example, the roasting process is only time-controlled, and the temperature in the roasting container at the start of the roasting process is ignored. It is difficult to finish in an appropriate state.

Specifically, for example, in a situation where the roasting process is continuously performed, when the second or subsequent roasting process is started, the temperature of the roasting container is increased by the residual heat to start the first roasting process. The temperature is higher than at the time, and as a result, the coffee beans are excessively heated, and the roasting is likely to be finished in a deep state.

On the other hand, each time the roasting process is performed, the applicant of the present application detects the temperature in the roasting container at the start of roasting, sets a target finish temperature in consideration of the detected temperature, and sets a roasting target temperature. It is considered to take measures to end the roasting process when the detected temperature reaches the finish target temperature in the roasting process. In this way, the coffee beans can always be finished in an appropriate state regardless of the temperature inside the roasting container at the start of roasting. By the way, in this case, it is necessary to use a temperature sensor. However, since it is difficult to provide the temperature sensor in the roasting container that is rotated due to wiring, the temperature sensor is disposed in the hot air introduction passage. . However, if the temperature sensor is provided in the hot air introduction passage, it is effective for detecting the temperature of the hot air, but it has been difficult to accurately detect the temperature of the coffee beans.

In view of such circumstances, according to the present invention, in a roasting apparatus, the temperature of coffee beans is more accurately detected,
Further, the object is to keep the sensitivity of the temperature sensor stable.

[0008]

According to a first aspect of the present invention, there is provided a roasting apparatus for roasting coffee beans by putting hot air into a roasting container containing raw or semi-fresh coffee beans. In the roasting process, the temperature in the roasting container is detected by a temperature sensor, and the operation of the roasting process is controlled based on the detected temperature, and the temperature sensor externally outputs hot air put in the roasting container. The exhaust passage is disposed in the exhaust passage.

According to a second aspect of the present invention, there is provided a roasting apparatus, comprising: a roasting container into which fresh or semi-green coffee beans are charged; a hot-air generating element for supplying hot air into the roasting container; A temperature sensor for detecting the temperature of the roasting process, and performing a roasting process in which hot air is blown into the roasting container in response to a roasting start command, and when the temperature detected by the temperature sensor reaches the required finish target temperature for the roasting process The temperature sensor is disposed in an exhaust passage for discharging hot air put in the roasting container to the outside.

A roasting apparatus according to a third aspect of the present invention is a roasting container having a cylindrical shape in which fresh or semi-fresh coffee beans are put, a driving element for rotating the roasting container about a horizontal axis, and the roasting container. A hot air generating element for injecting hot air into the roasting container, a temperature sensor for detecting an ambient temperature of the roasting container, and a roasting process for injecting hot air into the roasting container while rotating the roasting container in response to a roasting start command. And a management element for terminating the roasting process when the temperature detected by the temperature sensor reaches a required finish target temperature, and the temperature sensor discharges the hot air put in the roasting container to the outside. It is arranged in the exhaust passage.

According to a fourth aspect of the present invention, in the roasting apparatus, the temperature sensor according to any one of the first to third aspects is attached to the back side of a wall forming an exhaust passage.

According to a fifth aspect of the present invention, there is provided a roasting apparatus, wherein the wall of the fourth aspect is provided with a temperature sensor.
It is formed of a material having excellent thermal conductivity.

According to a sixth aspect of the present invention, in the roasting apparatus, the exhaust passage side of the wall of the fourth or fifth aspect where the temperature sensor is attached is set to have a color excellent in heat ray absorption. I have. As described above, according to the first to sixth aspects of the present invention, the roasting container is specified by specifying the temperature sensor for detecting the temperature in the roasting container in the exhaust passage capable of indirectly detecting the temperature of the coffee beans. Since the temperature of the hot air that has been supplied to the inside and exchanged heat with the coffee beans can be detected, the temperature of the coffee beans can be detected more accurately.

In particular, if the temperature sensor is installed outside the exhaust passage as in the invention of claim 4, it is possible to suppress the deterioration of the sensitivity due to the adhesion of dust to the temperature sensor for a long time. become.

According to a fifth aspect of the present invention, when the temperature sensor is installed outside the exhaust passage and the wall of the exhaust passage is made of a material having excellent thermal conductivity, the temperature detection condition of the temperature sensor can be improved. However, this is equivalent to the case where a temperature sensor is installed in the exhaust passage.

According to a sixth aspect of the present invention, when the temperature sensor is installed outside the exhaust passage and the wall of the exhaust passage is set to a color excellent in heat ray absorption, that is, a dark black color. In addition, discoloration of the wall due to hot air over time is suppressed, and the thermal conductivity to the temperature sensor is kept substantially unchanged for a long period of time. Thereby, the temperature detection condition by the temperature sensor becomes equivalent to the case where the temperature sensor is installed in the exhaust passage.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described based on embodiments shown in the drawings.

FIGS. 1 to 10 show an embodiment of the present invention. FIG. 1 is a block diagram showing a schematic configuration of a coffee maker, FIG. 2 is a front view showing an appearance of the coffee maker, FIG. 3 is a front view in which a main part of the coffee maker is sectioned, and FIG. (4)-(4) arrow cross-sectional view, FIG. 5 is a top view of the roasting unit, FIG. 6 is a side view of the roasting container in section, and FIG. 7 is an exploded state of the roasting container. 8 is a cross-sectional view taken along line (8)-(8) of FIG. 6, and FIG.
2 is a cross-sectional view taken along line (9)-(9), and FIG. 10 is a timing chart showing a coffee generation sequence.

In the figure, reference numeral 1 denotes the whole coffee maker. The coffee maker 1 shown in the figure has a roasting unit 2 for roasting raw or semi-green coffee beans, a crushing unit 3 for crushing the roasted coffee beans into coffee powder, and a coffee powder obtained by crushing. It has an extracting unit 4 for pouring hot water to extract a coffee liquid, and a control unit 5 for controlling the operation of each unit. The coffee liquid extracted by the extraction unit 4 is stored in the glass container 6 and is kept warm by a heater 44 provided in the extraction unit 4.

The roasting section 2 comprises a roasting container 21 for accommodating coffee beans, a drive unit 22 for rotating and driving the roasting container 21, and a blower 23 for supplying hot air or unheated air to the roasting container 21. The roasting container 21 is rotated in one direction by the drive unit 22 in a posture inclined at a required angle with respect to the horizontal line, while the blower 23 is rotated from the other end of the roasting container 21.
Roasting container 2 by sending hot air generated by
1 roasts the coffee beans. The drive unit 22 includes a motor 22a and a speed reduction mechanism 22b. The blower 23 includes a heater 23a and a fan 23b. Other details will be described later.

The crushing unit 3 includes a cup 31 having a passage for receiving the coffee beans roasted in the roasting unit 2, a cover 32 for closing an upper opening of the cup 31, and roasting supplied into the cup 31. The rotary cutter 33 includes a rotary cutter 33 that crushes used coffee beans and a motor 34 that drives the rotary cutter 33.

The extraction unit 4 includes a filter basket 41 for receiving the coffee powder obtained by crushing in the crushing unit 3;
A water storage tank 42 for storing water, a heat exchange pipe 43 for taking out a required amount of water from the water storage tank 42 and supplying it as hot water to the filter basket 41;
And a heater 44 for heating the heater. A check valve 45 is provided at a connection portion between the water storage tank 42 and the heat exchange pipe 43 to prevent backflow of hot water.

The control section 5 is composed of a microcomputer, and continuously executes roasting processing, pulverizing processing and extraction processing according to a timing chart shown in FIG.

Here, each part of the roasting section 2 will be described in detail.

The drive unit 22 and the blower 23 are disposed so as to face each other, and the roasting container 21 is interposed therebetween at a posture inclined at a required angle with respect to the horizontal line. One end of the roasting container 21 is removably attached to the spindle shaft 22c of the speed reduction mechanism 22b of the drive unit 22 in a cantilever manner, and the other end of the roasting container 21 is attached to the blower case 24. On the other hand, they are arranged facing each other with a required gap h. An opening / closing cover 25 that covers the space above the gap h is attached to the blower case 24.
Is attached. The gap h serves as an exhaust passage for discharging the hot air put in the roasting container 21 to the outside. The temperature sensor 7 is installed in this exhaust passage. That is, the temperature of the coffee beans is indirectly detected by detecting the temperature of the wind after the hot air supplied from the blower 23 into the roasting container 21 exchanges heat with the coffee beans in the container 21. This is to make it possible. In particular, in this embodiment, in order to prevent the sensitivity of the temperature sensor 7 from decreasing over time, as shown in FIG. 3, the temperature sensor 7 is connected to a wall portion facing the roasting container 21 in a blower case 24 made of synthetic resin. It is installed in a form that is hidden behind the 24a.
In such an installed state, the temperature sensor 7 is
Since it is difficult to accurately detect the atmospheric temperature in the inside, as shown in FIG. 9, an opening is provided in a stainless steel wall portion 24a having poor thermal conductivity, and an aluminum alloy or the like having excellent thermal conductivity is provided for the opening. , And a temperature sensor 7 is attached to the back surface of the metal plate 8.
Further, the surface of the metal plate 8 may be burned with the lapse of time by the exhausted hot air or may be discolored due to the adhesion of dirt. , The thermal conductivity to the temperature sensor 7 changes. In this embodiment, in order to suppress the change in the heat ray absorption of the metal plate 8 due to such discoloration, in the present embodiment, the surface of the metal plate 8 is preliminarily colored with a dark black color excellent in heat ray absorption. That is, with the colored metal plate 8, it is possible to suppress the temporal discoloration itself due to the hot air, so that the thermal conductivity to the temperature sensor 7 is kept almost unchanged over a long period of time. Become.

The roasting container 21 is provided with a ventilation cover 21b at one opening of a cylindrical case 21a made of transparent heat-resistant glass.
However, the bottom cover 21 is provided at the other opening of the case 21a.
c and the shutter 21d are attached to each other.

The bottom cover 21c is configured such that a cylindrical flange portion 21f formed integrally with the outer periphery of a disk-shaped cover body 21e is detachably fitted to and fixed to the case 21a. It should be noted that the cylindrical flange portion 21f is arranged as shown in FIG.
As shown in FIG. 3, the entire inner peripheral surface is not closely contacted with the outer peripheral surface of the case 21a, but only the flexible pieces 21g formed at several places around the circumference of the cylindrical flange portion 21f are partially in close contact with each other. I have. This makes it possible to absorb a change in interference between a fitting portion between the case 21a and the bottom cover 21c having different coefficients of thermal expansion in accordance with a change in the ambient temperature in the roasting container 21. Damage can be prevented. Then, the roasted coffee beans are crushed into two portions 180 degrees opposite to each other on the cover body 21e.
There is provided a fan-shaped through hole 21h for discharging air to the air, and two blades 21i are attached corresponding to the through hole 21h. The blades 21i move the coffee beans to the center side of the roasting container 21 while stirring them while rotating during roasting, and move the coffee beans to the roasting container 21 with rotation in the direction opposite to the rotating direction during roasting. It is attached so as to be inclined toward the through hole 21h. The two blades 21i are provided with two slits 21j substantially parallel to the center of rotation of the roasting container 21 in the width direction. The slit 21j is for allowing hot air to pass through.

The shutter 21d is rotatably attached to the bottom cover 21c by a required angle, and opens and closes the through hole 21h of the bottom cover 21c by the rotation. To attach the shutter 21d to the bottom cover 21c, as shown in FIGS. 6 and 7, a bolt 9, a cap nut 10, a detent nut 11,
A toothed washer 12, a lock washer 13 and a conical coil spring 14 are used. Note that the spindle shaft 22c of the drive unit 22 is
The bolt 9 is integrated with the spindle shaft 22c.
And roasting container 21 comes to rotate. The fan-shaped notch 13a of the lock washer 13 enables the shutter 21d to rotate by a required angle with respect to the bottom cover 21c.

In the roasting container 21 having such a configuration, when the roasting container 21 is rotated in one direction, the shutter 21d is closed by the bottom cover 21.
When the shutter 21d is rotated in the opposite direction, the shutter 21d opens the through hole 21h of the bottom cover 21c. That is, when performing the roasting process, by rotating the roasting container 21 in the forward direction, the shutter 21d allows the through hole 21h of the bottom cover 21c to rotate.
Is closed, and when roasting is completed, the shutter 21d is closed.
To open the through hole 21h of the bottom cover 21c so that the roasted coffee beans can be discharged to the crushing unit 4 side.

An operation unit 10 is provided on the front surface of the main body case of the coffee maker 1. The operation unit 10 includes a power switch 11, a start switch 12, a number-of-cups designation switch 13, a lamp 14 indicating four steps of a roasting step, a pulverizing step, an extracting step, and a warming step.
Lamp 15 indicating the number of cups (4 stages of 2, 3, 4, 5)
And

Next, the operation of the coffee maker 1 having the above configuration will be described.

That is, when the start switch 12 is turned on while the power switch 11 is turned on, the control unit 5 first determines whether or not the amount of coffee beans has been designated by the cup number designation switch 13. Find out what. Here, if specified, the coffee generation operation as described below, that is, roasting processing, crushing processing, extraction processing,
The heat retention process is performed continuously, but if not specified, the request to start the coffee production operation is rejected. Therefore, as a procedure for starting the coffee production, before the user turns on the start switch 12, the required amount of coffee beans is put into the roasting container 21, and then the cup number designation switch 13 is operated. Then, it is necessary to turn on the start switch 12 after designating the amount of coffee beans input.

Here, when a request for starting coffee production is received, the roasting process is performed. To start the roasting process, first, the designated coffee bean input amount input from the cup number designation switch 13 is input. Then, the ambient temperature Sb in the roasting container 21 is recognized based on the detection signal from the temperature sensor 7, and using these recognition results, the finish target temperature So is obtained and determined according to required calculation application software. I do. Incidentally, when the detected temperature Sb at the start is 25 ° C. or higher, if the number of cups is “2”, the target finish temperature So is “155 ° C.”
“3” → “160 ° C.”, “4” → “165 ° C.”, “5”
→ Set to "170 ° C". Further, when the detected temperature Sb at the start is 25 ° C. to 60 ° C., if the number of cups is “2”, the target finish temperature So is “160 ° C.”, and hereinafter “3” →
“165 ° C”, “4” → “170 ° C”, “5” → “17”
5 ° C ”. Furthermore, the detected temperature Sb at the start is 60 ° C.
At this time, if the number of cups is “2”, the target finish temperature So is set to “165 ° C.”, and hereinafter “3” → “170”
° C ”,“ 4 ”→“ 175 ° C ”,“ 5 ”→“ 180 ° C ”. In the roasting process, a change in the ambient temperature Sb in the roasting vessel 21 is detected by the temperature sensor 7 one by one, and the control is performed so that the detection is terminated when the detected value reaches the set finish target temperature So. You.

Hereinafter, the roasting process, the crushing process, the extracting process, and the heat retaining process will be described in detail.

First, in the roasting process, hot air is introduced into the roasting container 21 by the blower 23 while rotating the roasting container 21 in one direction by the drive unit 22 at a required number of revolutions. When the roasting container 21 is rotated in this manner,
Coffee beans inside the roasting container 21
Of the case 21
The coffee beans are lifted to the downstream side in the rotation direction and agitated by the frictional resistance of the inner peripheral surface of a, so that the coffee beans are dispersed without being densely packed.

In this roasting process, the hot air generated from the blower 23 is introduced from the lower half area of the ventilation cover 21b of the roasting container 21 and is turned by the bottom cover 21c to be turned in the upper half of the ventilation cover 21b. And the air is exhausted to the outside through the ventilation holes of the opening / closing cover 25. The hot air described above is managed so as to be blown toward an area where no coffee beans exist in the case 21a of the roasting container 21. The reason why the hot air is not directly applied to the coffee beans is to eliminate uneven heating of the coffee beans. Then, in the roasting process, the coffee beans are put on the blades 2 of the bottom cover 21c.
1i, the skin is peeled off from the coffee beans with stirring, and the skin is collected in a chaff box 27 provided in a gap h between the blower case 24 and the roasting container 21 by an exhaust stream of hot air. Has become.

When the roasting process is completed, the heater 23a of the blower 23 is stopped, and only the drive of the fan 23b is continued. Air-cool the roasted coffee beans in 21. When the required time has elapsed from the start of the air cooling, the coffee beans in the roasting container 21 are transferred to the crushing unit 3. The air cooling process is continued until the extraction process described below is completed even after the transfer of the coffee beans, so that the roasting container 21 is cooled.

The transfer of the coffee beans from the roasting container 21 to the crushing unit 3 is performed by rotating the motor 22a of the drive unit 22 in a direction opposite to the rotation direction during the roasting process. In other words, by this reverse rotation, the roasting container 21 is rotated in the direction opposite to the roasting process, and the roasting container 2 is rotated.
The first shutter 21d is a through hole 21h of the bottom cover 21c.
And the bottom cover 21
The blade 21i of c moves coffee beans toward the through hole 21h of the bottom cover 21c in the roasting container 21. Thereby, the coffee beans are sequentially discharged from the through holes 21h and sequentially transferred into the cup 31 of the crushing unit 3. When the transfer of the coffee beans is completed, the roasting container 21 is rotated in the same direction as the rotation direction during the roasting process.
The through hole 21h of c is closed. This prevents steam from flowing into the roasting container 21 in the drip process of the extracting unit 4 described below, and also allows unheated air for air-cooling the roasting container 21 to enter the extracting unit 4 to cool the drip hot water. This is in order to prevent further progress.

Simultaneously with the transfer of the coffee beans to the cup 31 of the crushing unit 3, a so-called milling process is executed. In this milling process, the rotary cutter 33 disposed in the cup 31 is used.
Is driven by a motor 34 to grind the sequentially supplied coffee beans into powder. The coffee powder obtained by crushing in the crushing unit 3 in this manner is
Are sequentially transferred to the filter basket 41 of the extraction unit 4.

When the coffee powder is transferred to the extraction unit 4 in this manner, a so-called drip process is performed. In this drip treatment, the water in the water storage tank 42 is supplied to the heat exchange pipe 43 by a required amount, and the water in the heat exchange pipe 43 is heated by the heater 44 to become hot water and the filter basket 41 is heated.
Pour into. However, in the initial stage of the drip process, a small amount of hot water is applied to the coffee powder in the filter basket 41 to spread the coffee powder. Then, after passing through the spotting period, the hot water is continuously supplied to extract the coffee liquid. The coffee liquid extracted in this manner is stored in the glass container 6 and kept warm by the heater 44 of the extraction unit 4.

When the drip processing is completed in this way, the driving of the fan 23b of the blower 23 is stopped, and the air cooling processing of the roasting container 21 is also ended.

Incidentally, since the air cooling process is continuously performed from the end of the roasting process to the end of the drip process, the roasting container 21 heated by the roasting process can be sufficiently cooled. Can be cooled. Therefore,
Even after the first coffee generation is completed, the user can remove the roasting container 21 by hand without any trouble even when the coffee is subsequently generated.

As described above, in the roasting process in the coffee producing process, each time the roasting process is performed, the finishing target is set in accordance with the amount of coffee beans input, the ambient temperature in the roasting container 21 at the start of roasting, and the like. Since the temperature is set and controlled, the coffee beans can be heated during the roasting process without excess or shortage, and the coffee beans can always be roasted properly. It can be finished. In addition, the location of the temperature sensor 7, which is indispensable for temperature control in the roasting process, is devised so that the sensitivity can be stably maintained for a long period of time, so that the roasting temperature can always be accurately controlled.

It should be noted that the present invention is not limited to only the above embodiment, and various applications and modifications are conceivable. (1) In the above-described embodiment, an example in which the coffee maker 1 is equipped with the roasting unit 2 has been described. However, a configuration in which the roasting unit 2 is configured as a single device is also included in the present invention. (2) In the above embodiment, if the ambient temperature in the roasting container 21 at the start of the roasting process is higher than a required level, the roasting target temperature may be set to a value corresponding to the temperature. The roasting state is not considered to be good, and in severe cases, there is a concern that the roasting container 21 may be abnormally overheated and safety may not be ensured.
So, in the situation described above, we anticipate safety,
The target finish temperature may be set to a level that is not too high, and the control may be switched to control for adjusting the roasting processing time.

[0045]

According to the first to sixth aspects of the present invention, the location of the temperature sensor for detecting the temperature in the roasting container is specified in an exhaust passage through which the temperature of the coffee beans can be indirectly detected. Temperature can be detected more accurately. Therefore, the temperature of the roasting process can always be accurately controlled, so that the coffee beans can always be appropriately heated without excess or shortage, and the roasting can be performed in an appropriate state.

In particular, according to the fourth aspect of the present invention, since the temperature sensor is provided outside the exhaust passage, the effect of protecting the temperature sensor can be further enhanced.

According to the fifth aspect of the present invention, since the temperature sensor is installed outside the exhaust passage and the wall of the exhaust passage is made of a material having excellent thermal conductivity, the protection effect of the temperature sensor is further enhanced. In addition, it is possible to avoid a decrease in detection accuracy such that the temperature detection condition by the temperature sensor becomes the same as when the temperature sensor is installed in the exhaust passage.

According to the sixth aspect of the present invention, the temperature sensor is installed outside the exhaust passage, and the wall of the exhaust passage is set to a color excellent in heat ray absorption, that is, a dark color. The protection effect of the temperature sensor can be further enhanced, and the discoloration itself with time due to the hot air on the wall can be suppressed. Therefore, the thermal conductivity to the temperature sensor can be made almost constant over a long period of time, and therefore, It is possible to avoid a decrease in detection accuracy, for example, the temperature detection condition by the temperature sensor becomes the same as when a temperature sensor is installed in the exhaust passage.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a coffee maker according to an embodiment of the present invention.

FIG. 2 is a front view showing the appearance of a coffee maker;

FIG. 3 is a front view of a main part of the coffee maker in section.

FIG. 4 is an arrow view of a cross section taken along line (4)-(4) in FIG. 2;

FIG. 5 is a top view of the roasting unit.

FIG. 6 is a side view showing a cross section of a roasting container.

FIG. 7 is a side view of the roasting container in a disassembled state.

FIG. 8 is a sectional view taken along line (8)-(8) of FIG.

9 is an arrow view of a cross section taken along line (9)-(9) in FIG. 2;

FIG. 10 is a timing chart showing a coffee generation sequence.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coffee maker 2 Roasting part 21 Roasting container 22 Drive unit 23 Blower 24 Blower case 24a Wall of blower case 3 Crushing part 4 Extraction part 5 Control part 7 Temperature sensor 8 Metal plate

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4B004 AA13 AA20 BA06 BA16 BA31 BA50 CA01 CA04 4B061 AA01 AB02 AB07 BA09 CD07 CD12 CD19

Claims (6)

[Claims] 1. A roasting apparatus for roasting coffee beans by blowing hot air into a roasting container containing raw or semi-fresh coffee beans, wherein the temperature in the roasting container is set to a temperature in the roasting process. It detects with a sensor, and controls the operation of the roasting process based on the detected temperature.The temperature sensor is disposed in an exhaust passage that discharges hot air put in the roasting container to the outside. A roasting apparatus characterized in that: 2. A roasting container into which raw or semi-fresh coffee beans are charged, a hot air generating element for introducing hot air into the roasting container, a temperature sensor for detecting an ambient temperature of the roasting container, and a roasting start. A management element for performing a roasting process of putting hot air into the roasting container in response to the command and terminating the roasting process when the temperature detected by the temperature sensor reaches a required finish target temperature, The roasting device according to claim 1, wherein the temperature sensor is disposed in an exhaust passage for discharging hot air put in the roasting container to the outside. 3. A roasting container having a cylindrical shape in which fresh or semi-fresh coffee beans are placed, a driving element for rotating the roasting container about a horizontal axis, a hot air generating element for putting hot air into the roasting container, A temperature sensor for detecting an ambient temperature of the roasting container; and performing a roasting process of feeding hot air into the roasting container while rotating the roasting container in response to a roasting start command, and performing the roasting process with the temperature. A management element for terminating when the temperature detected by the sensor reaches a required finish target temperature, wherein the temperature sensor is disposed in an exhaust passage for discharging hot air put in the roasting container to the outside, A roasting apparatus characterized in that: 4. The roasting apparatus according to claim 1, wherein the temperature sensor is attached to a back side of a wall forming an exhaust passage. 5. The roasting apparatus according to claim 4, wherein a portion of the wall provided with the temperature sensor is formed of a material having excellent heat conductivity. 6. The roasting apparatus according to claim 4, wherein an exhaust passage side of a portion where the temperature sensor is provided on the wall is set to have a color excellent in heat ray absorption. Roasting equipment.