烟叶烘烤受多种因素的影响和制约,只要在烟叶烘烤过程中控制多项指标,协调好烘烤中的各种矛盾,就可以把烟叶烤黄烤好。一、烟叶三段式烘烤技术目前我国烟叶烘烤以三段式烤烟工艺为主,烟叶烘烤分为变黄、定色、干筋三个阶段,每个阶段的技术要求如下:1.变黄阶段变黄阶段通常分两步进行:第一步,烟叶装满炕后封严天窗地洞,点火后稳烧小火,以每2小时升温1℃的速度将干球温度升到35℃～38℃,保持湿球温度比干球温度低1℃～2.5℃,直到底棚烟叶80%以上变到八成黄,即除叶基部、烟筋和烟筋两边为青色外,叶片呈黄色发软;第二步,将干球温度升高到40℃～42℃,保持湿球温度36℃～37℃,直到烟叶变化达到目标要求。 Tobacco bake affected by many factors and constraints, as long as the control of tobacco in the process of baking a number of indicators, to coordinate a variety of contradictions in baking, you can roasted yellow baked good. First, the tobacco three-stage baking technology At present, China’s tobacco baking to three-stage flue-cured tobacco-based, tobacco baking is divided into yellow, fixed color, dry tendon three stages, each stage of the technical requirements are as follows: The yellowing phase of the yellowing stage is usually carried out in two steps: the first step, the tobacco is filled with kang and then sealed with a blind hole and the fire is stabilized after ignition. The dry-bulb temperature is raised to 35 ° C every 2 hours by 1 ° C ~ 38 ℃, keep the wet bulb temperature 1 ℃ ~ 2.5 ℃ lower than the dry bulb temperature till the above 80% of the greenhouse tobacco leaves become 80% yellow, that is, the leaves are yellow on both sides except the base of the leaf, Soft; the second step, the dry bulb temperature is raised to 40 ℃ ~ 42 ℃, keep the wet bulb temperature 36 ℃ ~ 37 ℃, until the tobacco leaf changes to meet the target requirements.