Oxygenation rolling method
A technology of kneading machine and oxygen generator, which is applied in the field of oxygen-increasing kneading in black tea processing, to achieve the effect of improving sensory quality, high aroma and freshness
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Embodiment 1
[0016] An oxygen-increasing rolling method suitable for tea processing, especially for black tea shaping operations, provided by the following steps:
[0017] 1. Design figure 1 The device: the device is mainly composed of oxygen generator (oxygen tank) 1, plastic connecting pipe 2, connecting head 3, stainless steel pipe 4, kneading cover 5, kneading barrel 6, kneading plate 7, etc., plastic connecting pipe 2 One end is connected to the oxygen generator (oxygen tank) 1, and the other end is connected to the connector 3. The connector 3 is located on the kneading cover 5 and directly embedded on the kneading cover 5 (see figure 2 , image 3 ), the other end of the connector 3 is connected to the stainless steel pipe 4, the other end of the stainless steel pipe 4 is closed, and the stainless steel pipe 4 is fixed on the back of the kneading cover 5 by glass glue (see Figure 4 ), several small holes with a diameter of 1mm are set on the pipe wall of the stainless steel pipe ...
Embodiment 2
[0020] Referring to Example 1 ( Figure 1-Figure 4 ), first insert the connector 3 on the kneading cover 5 of the traditional 55-type kneading machine, set the stainless steel pipe 4 on the back of the kneading cover 5 through glass glue, the stainless steel pipe 4 is closely connected with the connector 3, and the stainless steel pipe 4 is provided with small holes (not shown in the figure), the other end of the connector 3 is connected to the plastic pipe 2, and the plastic pipe 2 is connected to the oxygen generator (oxygen cylinder) 1. During operation, put the finished product into the kneading barrel 6 according to the traditional kneading process, rotate the kneading machine handle to cover the kneading cover 5, then turn on the switch of the oxygen generator 1, control the air valve so that the oxygen flux is about 0.1MPa, and then Start the kneading device, the oxygen is input into the stainless steel pipe 4 through the plastic connecting pipe 2, and then output throu...
Embodiment 3
[0023]
[0024] Note: The raw materials of the three treatment samples are the tender fresh leaves of Cuifeng variety with 1 bud and 1 leaf. After withering to the same degree, different rolling techniques are used. drying job.
[0025] From the sensory evaluation results of tea samples with different treatments in the examples, it can be seen that the sensory quality of the tea samples after the oxygen-increased rolling operation is significantly improved compared with that of the tea samples without oxygen-increased rolling, especially in factors such as soup color, leaf bottom and aroma. By adding oxygen during the rolling process, the physiological activity of the product can be kept longer, the material transformation is more uniform and thorough, the soup color becomes brighter, and the generation of green streaks and dull taste can be avoided at the same time.
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