The mainstream green tea we drink, its production process is mostly fried green or roasted, although the steamed green process is relatively niche in China, but in fact it is more ancient than fried green, Enshi Yulu is currently one of the few steamed green tea. Although Enshi Yulu has a relatively long history, dating back to the Kangxi period of the Qing Dynasty, its industrialization was not realized until 2005. In 2005, Zhang Wenqi founded Rainbow International Selenium-rich Tea Co., Ltd., which currently has its own clonal tea base of 2,370 acres, plant area of nearly 20,000 square meters, more than 1,500 sets of processing equipment, and an annual production capacity of 3,000 tons. In 2008, Rainbow International built China's first continuous production line for steamed green needle-shaped green tea, which is also the most advanced automatic production line for steam finishing in China, with a daily output of more than 1,000 kilograms of high-grade "Enshi Yulu".
 
In addition to the standardized and large-scale industrial capacity, the production process of Rainbow tea also represents the highest level of Enshi Yulu. At the beginning of its establishment, Rainbow Tea hired the old expert Yang Shengwei as a technical consultant, and many folk masters who made Yulu joined. Yang Shengwei is the tenth generation of Enshi Yulu production skills representative inheritor, in 1972, Yang Shengwei was the first to organize the Enshi Yulu production process in the form of words, forming the theoretical system and process procedures of the current Enshi Yulu traditional production skills, and authored the monograph "Enshi Yulu", cultivating 392 Enshi Yulu traditional production skills, and training 196 tea enterprise Enshi Yulu production technical workers.
 
Although there is no specific source, the local tea company in Enshi has always claimed that "Enshi Yulu" was selected as one of the top ten famous teas in China in 1965. Rainbow also borrowed this gimmick to produce the 1965 series, which is its most popular product, the box of 120g is priced at 250 yuan, its dry tea strip tight rope, like pine needles, green and green, the tea soup is clear and bright, the aroma is fresh, the taste is sweet, it is the best choice to experience the pure Enshi Yulu flavor, use 40 bags of small bags, portability is also good, 200g is more particular about the packaging, use 4 cans of aluminum can packaging, the price is 560 yuan, more suitable as a gift to relatives and friends, There are also higher-priced options for gift packs, which can meet different levels of gift-giving needs. In addition to the 1965 series, Rainbow also produced the Goldwind series and the Yinhan series, the price is not much different from the 1965 series, and it is also available in bar boxes and gift boxes. Of course, old tea customers or newcomers can buy their ration tea, 100g is priced at 59 yuan, but the plastic bag packaging is not very particular, and you can buy tea cans for storing tea.