A first-curing method for flue-cured tobacco that effectively improves the processability of the industrial re-curing link of tobacco leaves

Abstract

The invention discloses a preliminary flue-cured tobacco drying method effectively improving the processability of a re-drying link in the tobacco industry. The method comprises the steps of tobacco charging, yellowing, withering, leaf drying and vein drying. The physical processing-resistant ability of preliminarily dried flue-cured tobaccos can be effectively improved, and the crushing resistance is improved. By optimizing temperature, humidity and drying time, smoke of tobacco leaves has the advantages of being full, mellow and sufficient and having slight large irritation and slight concentrated strength while the stable yellow property of the tobacco leaves is ensured, meanwhile the sensory quality of the tobacco leaves is improved according to the industrial demand through follow-upre-drying, and the problem of poor industrial re-drying processability caused by the fact that the quality of tobacco leaves dried by adopting a traditional preliminary drying method is close to the quality after re-drying is effectively avoided. The moisture absorption rate of tobacco leaves can be improved, and accordingly the method is conductive to switching from a quicker moisture absorptionstate to an appropriate threshing processing state in the re-dry-processing course. In addition, by adopting the preliminary flue-cured tobacco drying method, the moisture dissipation rate of tobaccoleaves can be improved, rapid moisture loss at a re-drying stage is facilitated, and accordingly the needed moisture content demand is met.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco curing technology, and in particular relates to a method for primary curing of flue-cured tobacco that can effectively improve the processability of the industrial re-curing link of tobacco leaves. Background technique [0002] In recent years, with the advancement of leaf threshing and redrying technology in the cigarette industry, under the guidance of the cigarette "big craft" processing concept that the previous process should serve the latter process, some of the original process tasks of silk processing (such as formula , Tobacco leaf quality improvement) moved forward to the process of threshing and redrying. As the pre-curing process of threshing and redrying, the primary curing of tobacco leaves is gradually developing in the direction of meeting the needs of threshing and redrying. Therefore, in order to improve the availability of tobacco raw materials in cigarette formulati...

AI Technical Summary

Problems solved by technology

However, most or all of the existing primary curing methods do not take into consideration the processability of industrial redrying, such as the indicators that industrial redrying pays more attention to, such as processing resistance, moisture absorption and moisture dissipation, resistance to crushing, and tobacco leaves after redrying. Sensory quality has improved. Tobacco leaves after initial roasting have problems such as poor processing resistance, easy breakage, and quality stereotypes, which lead to poor processability in the re-baking stage. Flue-cured tobacco cannot smoothly demonstrate the characteristics of the tobacco leaves during the re-baking process, and even produce some unpleasant burnt smell

Moreover, the existing first-cured tobacco leaves of different varieties and different parts appear on the re-curing line in the same mode, and the upper leaves often have insufficient baking maturity and stiff leaves, although the middle leaves are usually more mature. , but the aroma is insufficient, and the lower leaves are over-ripe and easily broken