High-efficiency baking method for improving appearance quality of K326 variety of tobacco leaves

Abstract

The invention discloses a high-efficiency baking method for improving appearance quality of K326 variety of tobacco leaves. The method is characterized by baking by using biomass fuel, harvesting properly mature K326 variety of tobacco leaves; arranging rods into a baking room to be baked, wherein the yellowing period control comprises initial yellowing period control, middle yellowing period control and later yellowing control, the color fixing period control comprises the initial color fixing stage and the later color fixing stage, and the initial color fixing stage control comprises temperature rise in the rate of 1 DEG C / 1-2h after the yellowing period control is finished; and the stem drying stage control comprises rising the temperature of a dry bulb to 66-67 DEG C, and adjusting thetemperature of a wet bulb to 40-42 DEG C. Through the slow temperature rise at the early color fixing stage, the problems that the grey smoke hanging and process execution are inaccurate, the bakingtime is long, the combustion efficiency is low, the pollution is large, and the feeding is frequent since the yellowing is easy and the color fixing is difficult, the tobacco leaves after baking are stiff, the fragrance is not enough, the temperature rise is slow, and the stable temperature is unstable in the traditional K326 tobacco leaf baking process are solved by combining the high temperatureand low humidity at the stage of drying the stems, and the proportion of the tobacco in middle and high quality and the quality of the baked tobacco leaves are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of tobacco curing, and specifically relates to a high-efficiency curing method for improving the appearance quality of K326 variety tobacco leaves, which significantly increases the proportion and quality of medium-to-high-grade tobacco after curing and shortens the curing time. Background technique [0002] Tobacco K326 variety has been introduced into my country from the United States in 1985. Due to its moderately high yield, orange color, full color, rich oil content, strong smoke flavor, and strong strength, it is an ideal main tobacco leaf and has always been the main tobacco leaf in Southwest my country. One of the characteristic varieties with a wide planting area in the region. [0003] In the prior art, regardless of the traditional coal-fired baking, or the partial use of biomass fuel, natural gas and point baking, the temperature in the early stage of K326 color fixation is set to 48~49°C, and the...

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Problems solved by technology

[0003] In the prior art, regardless of the traditional coal-fired baking, or the partial use of biomass fuel, natural gas and point baking, the temperature in the early stage of K326 color fixation is set to 48~49°C, and the heating rate is 1°C / h, there is a common problem that the tobacco leaves turn yellow and it is difficult to fix the color during the baking process; moreover, when using traditional coal-fired baking, it is also prone to the problems of excessive temperature rise and unstable temperature, which may easily lead to stiff tobacco leaves after roasting, insufficient aroma, The proportion of hanging gray smoke is large, and the appearance quality of tobacco leaves is poor

In addition, during the curing process of K326 tobacco leaves in the prior art, it is generally believed that appropriately increasing the humidity in the tendon-drying period can significantly improve the appearance quality, chemical composition coordination and sensory quality of the tobacco leaves, but there are also color differences between the front and back of some tobacco leaves after curing Large appearance quality problems; and higher humidity during the dry gluten period will also lead to greater heat loss and fuel waste during the baking process, making the baking time too long and the emission of pollutants large

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