制红茶,技术性高,季节性强,并且容易遭受自然灾害的威胁。特别是落雨和风大的天气,萎凋就无法顺利进行。茶农反映,制红茶有三怕:“怕落雨、怕阴天、怕风大”。同时在茶叶采制期间,又是秧青麦黄田要种的农忙季节,劳力显然紧张,因而往往发生茶叶养老、青叶积压霉烂,以及来不及制造,而粗制滥造等现象,造成品质低劣,叶底暗,汤色混沌,香气不高等缺点。如1952年春茶期间,连续落雨约15天之久,萎凋进行受到很大的阻碍,绍兴全县估计青叶养掉不扎或扎下后来不及萎凋而霉烂的就有30多万斤,严重的影响茶农收入。由此说明,萎凋是决定红茶品质好坏的主要关键。因此为克服雨大不能萎凋的困难,绍兴县稽东区龙峰乡大地里村红茶制茶工场,于1955年茶季中,经过多次的研究试验,终于将当地烘纸用的煏笼,改制成为红茶室内加温萎凋的工具——煏 Black tea, highly technical, seasonal, and vulnerable to the threat of natural disasters. Especially the heavy rain and windy weather, withering can not be carried out smoothly. Tea farmers reflect the system, there are three black tea fear: “afraid of falling rain, fear of cloudy, afraid of the wind.” At the same time in the tea harvesting system, but also the seedling season seedlings of young wheat busy season, apparently nervous labor, which often occur tea pension, green leaves backlog rotten, and too late to create, and shoddy phenomenon, resulting in poor quality, dark leaves, Tang color chaos, aroma is not high and other shortcomings. For example, during the spring tea of ​​1952, about 15 days of continuous rain fell, withering was greatly hindered. In Shaoxing county, it was estimated that more than 300,000 jin The impact of tea farmers income. This shows that withering is the main key to determining the quality of black tea. Therefore, in order to overcome the difficulty that the rain can not wither, the tea factory in Dadili Village, Longfeng Township, Jidong District, Shaoxing County, after many research trials in the tea season in 1955, finally turned the cage for local baking paper into a Black tea room heating withering tool - 煏