Cigar tobacco leaf pile turning method

Abstract

The invention discloses a cigar tobacco leaf pile turning method, which comprises the following steps that tobacco leaves to be fermented are subjected to moisture regaining and then are stacked into a tobacco pile similar to a cube, and the tobacco pile is placed on a wooden tray; fermenting the tobacco pile in an environment with certain temperature and humidity; and when the temperature of the core of the tobacco leaf reaches a preset temperature, turning by taking the block tobacco as a unit, performing position exchange on the block tobacco at different block positions during turning, adding the score of the block position of each block tobacco before turning after turning, and enabling the sum of the scores of the block tobacco to be equal after the last time of turning. By dividing the stacking area and assigning the diagonal blocks, in the whole fermentation process of the cigar tobacco leaves, each tobacco leaf is uniformly heated as far as possible, the chemical reaction in the same tobacco leaf is more sufficient, and the fermentation degrees of different tobacco leaves are more average; and finally, the uniformity of the appearance quality and color of the tobacco leaves, the sensory quality and the homogenization level of the raw materials in batches and among batches are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco processing, in particular to a method for turning over cigar tobacco. BACKGROUND

[0002] In the production of cigar, fermentation is a key link to ensure the formation of the quality of cigar tobacco, and is an important process to improve the appearance quality, physical properties, internal chemical composition and smoking quality of cigar tobacco, and is known as the technical core of cigar tobacco production. At present, the fermentation methods of cigar used at home and abroad include stacking fermentation method, box fermentation method and rice paste fermentation method. Among them, the most widely used is the stacking fermentation method, which is a method of stacking tobacco under certain moisture conditions to generate heat for promoting biochemical changes in tobacco and improving processing properties and quality of tobacco.

[0003] In the existing stacking fermentation technology, a turning over temperature is generally set for the tobacco stack, and the tobacco is turned over when the core temperature reaches the preset temperature. The turning over method is up and down, outside and inside, which aims to make the heat of different parts of tobacco uniform. However, this turning over method is extensive, and the volume of the tobacco stack is generally large, which makes it difficult to ensure that the heat of different parts of tobacco is uniform, resulting in low homogenization level of tobacco after fermentation, and large quality fluctuations between batches and within batches, which increases the difficulty of using product formula. SUMMARY

[0004] The purpose of the present application is to provide a method for turning over cigar tobacco to improve the quality and homogenization level of cigar tobacco after stacking fermentation.

[0005] The present application achieves the above-mentioned purpose by the following technical solutions:

[0006] A method for turning over cigar tobacco, comprising the following steps:

[0007] Step 1: Tobacco moisture regain and stacking: the tobacco to be fermented is moisturized, then stacked into a nearly cubic tobacco stack and placed on a wooden tray;

[0008] Step 2: Tobacco fermentation: the tobacco stack in step 1 is placed in a certain temperature and humidity environment for fermentation;

[0009] Step 3: Tobacco turning over and scoring: when the core temperature of the tobacco in step 2 reaches the preset temperature, the tobacco is turned over in units of tobacco blocks, the tobacco blocks in different block positions are exchanged in position during turning over, and the scores of the block positions of the tobacco blocks before turning over are added after turning over. After the last turning over, the scores of each tobacco block should be equal.

[0010] A further scheme is that the step 1 further includes area division: the tobacco stack is evenly divided into three layers, three columns and three rows, and after the division, there are 27 areas, which are named as block positions, and the tobacco placed in the block positions is named as block tobacco;

[0011] According to the number of contact surfaces between the block positions, the block position with three contact surfaces is named as a corner block position, the block position with four contact surfaces is named as an edge block position, the block position with five contact surfaces is named as a middle block position, and the block position with six contact surfaces is named as a center block position.

[0012] A further scheme is that the step 1 further includes scoring: the corner block positions in the upper layer are scored 1, and the score of the block position is increased by 1 for each additional contact surface or each next layer. That is, the scores of the four corner block positions in the upper layer are all 1, the scores of the four edge block positions are all 2, and the score of the middle block position is 3. The scores of the four edge block positions in the middle layer are all 3, the scores of the four middle block positions are all 4, and the score of the center block position is 5. The scores of the four corner block positions in the lower layer are all 3, the scores of the four edge block positions are all 4, and the score of the middle block position is 5.

[0013] A further scheme is that in the step 1, the initial score of each block tobacco is 0 when the tobacco is initially stacked.

[0014] A further scheme is that in the step 1, the length, width and height of the tobacco stack are 1m*1m*1m, and the moisture of the tobacco after moisture recovery is 35±1%.

[0015] A further scheme is that in the step 2, the environmental temperature and humidity are 35℃ and 75%.

[0016] A further scheme is that in the step 3, the preset turning temperature of the pile core is 40℃, and the turning frequency is 3-5 times.

[0017] The beneficial effects of the present application are as follows:

[0018] The cigar tobacco turning method provided by the present application can make each tobacco leaf as evenly heated as possible, the chemical reaction in the same tobacco leaf is more sufficient, the fermentation degree of different tobacco leaves is more average, and finally the uniformity of appearance quality color, the sensory quality and the homogenization level of raw material batches and between batches are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 : schematic diagram of the position of the upper tobacco leaf layer-column-row in the tobacco pile (top view);

[0021] Figure 2 : schematic diagram of the position of the middle tobacco leaf layer-column-row in the tobacco pile (top view);

[0022] Figure 3 : schematic diagram of the position of the lower tobacco leaf layer-column-row in the tobacco pile (top view);

[0023] Figure 4 : blank group tobacco leaf;

[0024] Figure 5 : tobacco leaf after fermentation of the comparative example;

[0025] Figure 6 : tobacco leaf after fermentation of the example. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0027] Example 1

[0028] The tobacco leaves of the De Xue series were used, and the moisture of the tobacco leaves after rehydration was controlled at 35±1%, and then the tobacco leaves were stacked, and the length* width* height of the tobacco pile after stacking was 1m*1m*1m, and then the tobacco pile was placed in an environment of 35℃ and 75% for fermentation. When the core temperature of the pile reached 40℃, the tobacco leaves were turned over 3 times, and the turning over path of the tobacco leaves and the scores of each block of tobacco leaves were shown in Table 1.

[0029] Table 1: Turning over path of tobacco leaves and scores when turned over 3 times

[0030]

[0031] Example 2

[0032] Different from Example 1, the tobacco leaves were turned over 4 times, and the rest of the conditions were the same, and the turning over path of the tobacco leaves and the scores of each block of tobacco leaves were shown in Table 2.

[0033] Table 2: Turning over path of tobacco leaves and scores when turned over 4 times

[0034]

[0035] Example 3

[0036] The difference from example 1 is that 5 times of turning over is carried out, and the rest of the conditions are the same, the tobacco turning over path and the score of each block are shown in table 3. The fermentation results are shown in Figure 6 .

[0037] Table 3 Tobacco turning over path and score when turning over 5 times

[0038]

[0039] Comparative example

[0040] The present comparative example provides a conventional cigar tobacco turning over mode, the turning over mode is up and down, inside and outside, respectively when turning over 3 times, 4 times, 5 times, sampling evaluation is carried out, and the rest of the conditions are the same as example.

[0041] Evaluation results

[0042] The appearance quality and sensory quality of the blank group, the comparative example and the example are compared and evaluated, and the evaluation results are shown in table 4

[0043] Table 4 Evaluation table of tobacco appearance quality and sensory quality

[0044]

[0045] The uniformity of the appearance color of the tobacco fermented by the example is obviously improved, the identity is consistent as a whole, the oil content of the tobacco becomes more sufficient, in terms of sensory quality, the tobacco aroma is more rich, and there is basically no odor after treatment, and the aftertaste is clean and comfortable.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims. In addition, it should be noted that in the above specific embodiments, each specific technical feature described above can be combined in any appropriate manner without contradiction, in order to avoid unnecessary repetition, the present application does not further describe various possible combination manners. In addition, various different embodiments of the present application can also be combined arbitrarily, as long as it does not deviate from the idea of the present application, it should also be considered as disclosed by the present application.

Claims

1. A method for turning over piles of cigar tobacco leaves, characterized in that, Includes the following steps: Step 1, tobacco leaf rehydration and stacking: The tobacco leaves to be fermented are rehydrated, then stacked into a near-cube-shaped pile and placed on a wooden tray; Step 2, tobacco fermentation: Place the tobacco pile from Step 1 in a specific temperature and humidity environment for fermentation; Step 3, Turning and Scoring of Tobacco Leaves: After the core temperature of the tobacco leaves in Step 2 reaches the preset temperature, the tobacco leaves are turned over in units of individual blocks. During the turning process, the positions of tobacco leaves in different blocks are exchanged. After the turning is completed, the scores of each tobacco leaf block before the turning are added. After the final turning is completed, the scores of each tobacco leaf block should be equal.

2. The method for turning over cigar tobacco leaves as described in claim 1, characterized in that, Step 1 also includes area division: the smoke pile is divided into three layers (upper, middle, and lower), three columns (left, middle, and right), and three rows (front, middle, and back), resulting in a total of 27 areas. These areas are named blocks, and the smoke placed in the blocks is named blocks of smoke. Based on the number of contact surfaces between blocks, blocks with three contact surfaces are named corner blocks, blocks with four contact surfaces are named edge blocks, blocks with five contact surfaces are named middle blocks, and blocks with six contact surfaces are named center blocks.

3. The method for turning over cigar tobacco leaves as described in claim 1, characterized in that, Step 1 further includes scoring: 1 point is assigned to each corner piece on the upper layer, and 1 point is added to the score for each additional contact surface or each layer below. Specifically, the four corner pieces on the upper layer each have 1 point, the four edge pieces each have 2 points, and the middle piece has 3 points. The four edge pieces on the middle layer each have 3 points, the four middle pieces each have 4 points, and the center piece has 5 points. The four corner pieces on the lower layer each have 3 points, the four edge pieces each have 4 points, and the middle piece has 5 points.

4. The method for turning over cigar tobacco leaves as described in claim 3, characterized in that, In step 1, when the tobacco leaves are initially stacked, each piece of tobacco has an initial score of 0.

5. A method for turning over cigar tobacco leaves as described in claim 1, characterized in that, In step 1, the length, width and height of the tobacco pile are 1m*1m*1m; the moisture content of the tobacco leaves after rehydration is 35±1%.

6. The method for turning over cigar tobacco leaves as described in claim 1, characterized in that, In step 2, the ambient temperature and humidity are 35°C and 75%.

7. A method for turning over cigar tobacco leaves as described in claim 1, characterized in that, In step 3, the preset core turning temperature is 40℃; the number of turning times is 3-5 times.

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